Filtering device and washing machine

A filtering device, including:

• a filtering cavity being provided with a water inlet, a filtered water outlet and a sewage outlet for discharging filtered impurities;
• a filtering mechanism being rotatably installed inside the filtering cavity to filter water entering the filtering cavity;
• wherein, the filtering device further includes:
• a blocking mechanism, which includes a blocking plate arranged inside the filtering cavity, and a first space and a second space are respectively formed on both sides of the blocking plate, the water inlet is communicated to the first space, and the filtered water outlet and sewage outlet are communicated to the second space;
• a water passing structure is provided on the blocking plate or between the blocking plate and the inner wall of the filtering cavity for communicating the first space and the second space;
• cleaning particles arranged in the first space of the filtering cavity are used to clean an inner wall of the filtering cavity and an outer wall of the filtering mechanism with friction and collision along with water flow;
• wherein the water inlet and the cleaning particles are provided on a side of the blocking plate, and the filtered water outlet and the sewage outlet are provided on an other side of the blocking plate;
• wherein an outer circumference of the filtered water outlet extends toward an outside of the filtering cavity to form a sealing support part;
• and
• wherein the filtering mechanism includes:
• a filtering part, being provided on the same side of the blocking plate as the water inlet and filters the water entering the first space;
• a water outlet joint, one end of which is connected to the filtering part, an other end passes through the blocking plate, and is rotatably inserted into the sealing support part.