Roller washing machine

The utility model relates to a roller washing machine, which belongs to the technical field of clothes processing devices and comprises a machine body, an outer barrel, an inner barrel, a water pump, a filter, a collecting box, a branch pipe and a first drain pipe. Wherein the outer barrel is arranged in the machine body, and the inner barrel is rotationally connected into the outer barrel; the water pump is arranged in the machine body and provided with a first input end and a first output end, and the first output end is used for communicating with the outside of the machine body. The filter is arranged in the machine body and provided with a second input end and a second output end, the second input end is used for communicating with the inner barrel, and the second output end of the filter communicates with the first input end of the water pump; the collecting box is arranged on the filter, is communicated with the interior of the filter and is used for collecting impurities filtered by the filter; one en