Washing machine impeller and washing machine comprising same

The invention relates to a washing machine impeller and a washing machine comprising the same. The impeller is provided with a disc-shaped impeller body, through water permeable holes and lifting ribs protruding on the top side of the impeller body are distributed on the impeller body, the lifting ribs provide grooves in the bottom side of the impeller body, and the impeller is provided with a thread scrap collecting device. The thread scrap collecting device is composed of the groove and a mounting plate matched with an opening of the groove, a water inlet and a water outlet are formed in the mounting plate, a one-way valve is arranged at the water inlet, the one-way valve allows washing water and thread scraps to enter the groove in a one-way mode, and the water inlet and the water outlet are communicated with each other. And a filtering element for preventing the thread scraps from leaving the groove is arranged at the water outlet. According to the washing machine impeller and the washing machine comprisi