The present invention relates to a fume pipe and a manhole and an inverter basework integrated formwork, and a construction method thereof, which can be easily constructed in a short time by constructing a fume pipe, a manhole and an inverter as a whole, and can be easily manufactured in the field or another place, and a manhole Hume pipe that can firmly reinforce the joints and the fume pipes to prevent deformation and dropping of the fume pipes and to prevent leakage of pollutants due to cracks in the joints, thereby preventing environmental pollution such as soil pollution and water pollution. And it relates to the basic casting integral formwork of manhole and inverter and its construction method.;The present invention forms an internal formwork forming the inner wall surface of the manhole, an external formwork forming the outer wall surface of the manhole, and a formwork for integral placing of the fume pipe including a fume pipe connected to the connection member, and a fume pipe connected to the connection member. In the, the fume pipe 30 is provided on the bottom of the fume pipe 30, the fume pipe mounting base 40 is formed so that the upper surface is bent in the same shape as the outer peripheral surface of the fume pipe (30); A semi-circular inverter formwork 50 having both ends inserted into the fume pipe 30 so that each fume pipe 30 inserted into the connection member is connected to each other; An auxiliary cover (60) provided between the inner formwork (10) and the outer formwork (20) and covering the upper portion of the inverter formwork (50) to form a circular shape when placing concrete; It is characterized in that it further comprises a reinforcement plate 12 provided in the lower portion of the internal formwork 10, the reinforcement plate 13 is coupled to the upper end of the inverter formwork 50 is opened.;Manhole, fume pipe support, reinforcement plate, inverter formwork, auxiliary cover
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