Stirring aeration device for sewage treatment

The invention discloses a stirring aeration device for sewage treatment, comprising: a substrate arranged above a sewage pool; the transmission shaft is rotationally arranged on the base plate and is suitable for extending downwards to enter the sewage pool; a flow guide channel is formed in the transmission shaft in the axial direction. The impeller is fixedly arranged at the lower end of the transmission shaft; the power source is suitable for driving the transmission shaft to rotate; the air source is connected with the transmission shaft and is suitable for supplying air to the sewage pool through the flow guide channel; the valve assembly is arranged on the transmission shaft and is suitable for controlling the air supply amount of the flow guide channel; the rotating speed of the transmission shaft is in positive correlation with the opening degree of the valve assembly. The device has the advantages of integration of stirring and aeration, convenience in control and full mixing. 本申请公开了一种污水处理用搅拌曝气装置，包括：