Preliminary treatment equipment for dirt at water pipe outer side wall

The invention relates to the technical field of water pipe dirt removal equipment, and discloses preliminary treatment equipment for dirt at a water pipe outer side wall. The preliminary treatment equipment comprises a middle box body, the middle of the bottom of the middle box body is fixedly connected with a wire pipe, the bottom of the wire pipe is fixedly connected with a power supply cylinder, the inner side wall of the power supply cylinder is fixedly connected with a storage battery, handles are fixedly connected to the left end and the right end of the power supply cylinder, a double-shaft motor is fixedly connected to the middle of the bottom of the inner side of the middle box body, output shafts at the two ends of the double-shaft motor are fixedly connected with torque rotatingshafts through couplings, the ends, far away from the double-shaft motor, of the two torque rotating shafts are movably connected to the inner wall of the left side and the inner wall of the right side of the middle box body