PURPOSE:To obtain a Barnett spray pipe for a mist machine excellent in liquid atomizing capacity, by a method wherein a first air sump is provided in a spray pipe main body and an air blocking and impact wall is arranged behind said sump while a second air sump is provided directly under the back side of said wall and a spray ring and a spray orifice are attached to the leading end of the spray pipe. CONSTITUTION:A first air sump 2 is provided in a spray pipe main body 1 and an air blocking and impact wall 3 is arranged therebehind while a second air sump 4 is further provided directly under the back side of said wall 3 and a spray ring 5 and a spray orifice 6 are attached to the leading end of the spray pipe. In the Barnett spray pipe of this mist machine, atomizing irregularity or the dripping atomizing irregularity or the dripping of liquid droplets is prevented and a chemical liquid can be scattered to crops from right above to right under.
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