Sewage treatment dredging device

The utility model discloses a sewage treatment desilting device which comprises a sedimentation tank body, a driving assembly is arranged on the surface of the sedimentation tank body, a supporting frame is fixedly arranged at the top of the sedimentation tank body through the driving assembly, and a pushing assembly convenient for pushing sludge to move is arranged on the surface of the supporting frame. A discharge assembly for conveniently discharging the collected sludge is arranged on the surface of the sedimentation tank body. The pushing assembly is adjusted, so that the pushing assembly is matched with the sedimentation tank body, the driving assembly drives the supporting frame to drive the pushing assembly to move towards the right side of the sedimentation tank body, sludge is pushed into the discharging assembly, and the sludge passes through external collecting equipment of the discharging assembly; the purpose of conveniently dredging the interior of the sedimentation tank during sewage treatmen