Inner wall cleaning device for three-way pipe fitting

The utility model discloses an inner wall cleaning device for a three-way pipe fitting. The inner wall cleaning device comprises a bottom plate and a cleaning unit, the rear side of the upper surface of the bottom plate is fixedly connected with the lower surface of an L-shaped fixing plate, a switch set is installed on the front side of the upper surface of the bottom plate, a base is fixed to the middle of the upper surface of the bottom plate, a T-shaped groove is formed in the upper surface of the base, and limiting grooves are formed in the left side, the right side and the front side of the upper surface of the bottom plate; the cleaning unit comprises a cleaning motor, a moving plate, a grinding roller, a connecting plate, a supporting plate, a moving block, a screw rod and a moving motor, and the moving plate is in a T shape. The inner wall cleaning device for the three-way pipe fitting can quickly grind and clean the inner wall of the three-way pipe fitting, can quickly complete cleaning of the inner