The present invention relates to an exhaust system using a chimney-type kitchen range hood, and an object thereof is to communicate with an exhaust path of the range hood and provide a plurality of intake ports and additional blowers (exhaust fan device) installed throughout the kitchen. When cooking and cooking using a range, it inhales indoor air pollutants generated from the range and rising within the range hood's collection range as well as indoor air pollutants that spread to the kitchen and quickly exhausts them to the outdoors through the exhaust path of the range hood. It is possible to maintain a comfortable kitchen environment at all times, but the manufacturing cost is very low, and it is equipped with only a single exhaust fan, so it operates at low noise. The power is sufficient to significantly improve the exhaust efficiency for indoor air pollutants, and the configuration is a cylindrical shape with both ends open, the upper end is fixed to the ceiling of the kitchen, and a plurality of intake holes are formed through the side portion. A chimney having an exhaust tube having a canopy, having an intake portion for inhaling indoor air pollutants on the lower surface, and two exhaust ports on the upper surface, connected in communication with the lower end of the exhaust tube portion so as to be disposed on the upper side of the range, and fixedly installed with a type range hood; a blower built into the hollow inside the exhaust tube of the chimney-type range hood; A tubular shape with a hollow interior, a plurality of intake ports protruding to communicate with the interior hollow to inhale indoor air pollutants, and a plurality of intake ports protruding to communicate with the interior hollow, are fitted and assembled to communicate with the intake port of the blower and flow into the interior hollow It has an exhaust port for exhausting the indoor air pollutant source into the blower by the blowing force of the blower, and is built into the hollow inside the exhaust tube of the chimney-type range hood, and one of the intake ports is one of the exhaust ports of the canopy through a connection pipe. a dust collection chamber connected in communication with one; The intake end is connected in communication with another one of the exhaust ports of the canopy of the chimney-type range hood through a connection pipe, the exhaust end is connected in communication with an exhaust line installed to be connected to the outdoors through a connection pipe, and the pipe assembly is connected to the blower It is connected in communication with the exhaust port and the connection pipe of the chimney-type range hood, characterized in that it comprises an air amplifying device built into the hollow inside the exhaust tube portion.
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