Washing machine

Provided is a washing machine, capable of making the cleaning mixture evenly fall upon the washings without adding cycling water channel and avoiding the jump of the cleaning mixture. The washing machine comprises: an outer trough, a washing and dewatering trough arranged inside the outer trough in a free rotating manner, stirring blades arranged at the internal bottom of the washing and dewatering trough in a free rotating manner, a back blade arranged at the lower portion of the stirring blades, a drive mechanism for driving the stirring blades and the washing and dewatering trough in a rotating manner, a water-feeding mechanism for providing water to the outer trough, and a control mechanism for controlling the drive mechanism and the water-feeding mechanism. By making the back blade rotate, the cleaning mixture, after passing through cycling runner formed by a cycling runner member arranged upon the washing and dewatering trough, is driven up. The cleaning mixture, starting from each opening portion at th