Aeration tank with stepped aeration pipes for sewage treatment

The utility model discloses an aeration tank with a stepped aeration pipe for sewage treatment, relates to the technical field of aeration tanks, solves the problem that the aeration efficiency is not obviously improved due to the fact that the position of the stepped aeration pipe is fixed in the prior art, and comprises an aeration tank body which is communicated with a water inlet pipe and a water outlet pipe, the aeration tank comprises an aeration tank body, a plurality of groups of brackets are fixedly connected to the bottom end in the aeration tank body, aeration pipes are fixedly connected to the top ends of the brackets, and a plurality of groups of aeration heads are mounted on the aeration pipes. The height of the brackets at the two ends is adjusted through the arranged adjusting assembly, so that the step direction of the aeration pipe is changed in a reciprocating manner, sewage in the aeration tank is conveniently and quickly aerated, and the problem that the aeration efficiency is not obvious