Cleaning equipment for inner wall of sewage treatment tank

The utility model relates to the technical field of stain cleaning, and discloses a sewage treatment pool inner wall cleaning device which comprises a main frame, motors are installed on the two sides of the top of the main frame, rotating shafts are rotationally connected to the four vertex angle positions of the top of the main frame in a sleeved mode, and a protective shell is fixedly connected to the outer portions of the rotating shafts in a sleeved mode. And a cleaning roller is rotationally sleeved with the protection shell, an output shaft of the motor is in transmission sleeving with a belt, a hydraulic machine is fixedly connected to the top of the main frame, and a water tank is installed at the bottom of an inner cavity of the main frame. According to the cleaning equipment for the inner wall of the sewage treatment tank, the four cleaning rollers are driven to rotate through the rotating shaft, then the balance box is manually pushed to drive the main frame to move in a wall-attached mode, wall-a