Air distribution duct of koji making machine

The utility model discloses an air distribution duct of a koji making machine. The air distribution duct comprises an air duct body and an air volume adjusting mechanism, the air duct body comprises two side plates, a top plate connected to the two side plates and an air cavity defined by the two side plates and the top plate, the two side plates evenly extend in the vertical direction, and air outlets are formed in the two side plates and the top plate. The air volume adjusting mechanism comprises a choke plate arranged in the air cavity and an adjusting rod movably connected with the choke plate, the choke plate is movably connected with a side plate of the air duct body and forms a preset angle with the side plate, and the adjusting rod is connected to the side plate of the air duct body. According to the air distribution duct of the starter propagation machine, the air inlet amount of the cavity of the air duct body can be conveniently adjusted. 本实用新型公开了一种制曲机布风风道，包括风道本体和风量调节机构。风道本体包括两个侧板、连接于两个侧板的顶板以及两个侧板、