Roller washing machine

The utility model provides a roller washing machine. The roller washing machine comprises a water level detector which is used for detecting the water level of the roller washing machine, a control panel and a controller, wherein a self-cleaning main program key on the control panel is arranged on the control panel. When the self-cleaning main program key is triggered and the water level detector detects that inflowing water of the roller washing machine achieves the set water level, the controller controls the roller washing machine to enter a self-washing main program. The self-cleaning main program comprises high-speed rotating cylinder washing cleaning, wherein the high-speed rotating cylinder washing cleaning enables an inner cylinder to rotate with the rotating speed to be at least larger than or equal to the critical rotating speed R to enable water flows to at least rotate along the peripheral wall of the inner cylinder for one revolution and a waterfall water flowing effect from the inner cylinder side to the inner cylinder bottom to be generated. The roller washing machine can thoroughly wash the inner cylinder dead angles, achieves an effective and omnidirectional washing and has a three-dimensional water flow visual effect.