The invention provides an
aeration device for treating domestic
sewage. The
aeration device comprises a water tank, an
air heater and a driving structure, a plurality of
aeration pipes are erected at the bottom of the water tank, the aeration pipes are obliquely arranged and incline downwards towards one side of a
discharge pipe of the water tank, the other ends of the aeration pipes protrude out of the water tank and are all communicated with a collecting
pipe, and the collecting
pipe is communicated with an air outlet of an
air heater; a plurality of air outlet holes are formed in the aeration pipes, cleaning structures are mounted in the aeration pipes, one ends of the cleaning structures protrude out of the inclined bottom ends of the aeration pipes and are in transmission connection with a driving structure, and the driving structure drives the cleaning structures in the aeration pipes to move, so that the air outlet holes of the aeration pipes are cleaned, and anti-blocking is realized; a relatively appropriate temperature can be provided for microorganisms in
sewage by adopting a hot air supply effect, so that the activity is improved, and the reaction is accelerated; moreover, the air outlet holes can be prevented from being blocked, impurities are prevented from remaining in the aeration pipe, smooth ventilation and air outlet are maintained, and the aeration efficiency is improved.