Air blowing device for sewage

The utility model discloses a sewage air-blowing device which comprises an air-blowing box, the top of the air-blowing box is movably connected with a box cover through a buckle, the top of the box cover is fixedly connected with an air pump, the two ends of the air pump are communicated with air outlet pipes through pipelines, and the bottoms of the air outlet pipes are communicated with one-way air outlet valves. The bottom of the one-way air outlet valve is communicated with an aeration pipe, aeration holes are formed in the surface of the aeration pipe, and the surface of the aeration pipe is sleeved with a cleaning plate. Through the cooperative use of the air blowing box, the box cover, the air pump, the air outlet pipe, the one-way air outlet valve, the aeration pipe, aeration holes, a cleaning plate, a hydraulic telescopic rod, a cleaning brush, a clamping hole, a storage groove, a pull plate, a pin rod and a spring, a good aeration function can be realized, impurities adsorbed on the surface of the a