Cleaning equipment for cleaning inner cavity of 3D printing metal part

The utility model relates to cleaning equipment for cleaning an inner cavity of a 3D printing metal part. The cleaning equipment comprises a control cabinet. One side plate of the control cabinet is provided with an inlet and a discharge port, and the other side plate of the control cabinet is provided with four water inlets and four water outlets which are connected to workpieces; a water inlet pipeline, a water pump arranged on the water inlet pipeline, a pressure reducing valve, a safety valve, a pressure gauge and a water outlet pipeline are arranged in the control cabinet; one end of the water inlet pipeline is connected with the inlet, the other end of the water inlet pipeline is provided with four water inlet branch pipes connected to the water inlet, and each water inlet branch pipe is provided with an electric ball valve; one end of the water outlet pipeline is connected with the discharge port, and the other end is provided with four water outlet branch pipes connected to the water outlet; a control