Box washing machine

The utility model belongs to the technical field of cleaning, and particularly relates to a box washing machine. According to the utility model, the height of the box pressing rod and the position ofthe side guardrail are adjusted; the RV gear motor drives the driving chain wheel to rotate; therefore, the conveying shaft penetrating chain and the driven chain wheel are driven to rotate; then theturnover box is placed on the box feeding platform; the conveying shaft penetrating chain drives the turnover box to sequentially pass through the first cleaning chamber, the second cleaning chamber and the third cleaning chamber to reach the box discharging platform to finish cleaning; the steam heating pipeline heats water in the first water tank; the water pump pumps water in the first water tank through the filter; water pumped by the water pump is sprayed to the turnover box through the high-pressure spraying pipeline; by means of the circulation box cleaning device, the circulation boxescan be continuously and au