Pulp washing device

The utility model discloses a pulp washing device, which belongs to the technical field of fiber material production, and comprises a water tank and a middle cylinder arranged in the water tank, the inner wall of the middle cylinder is fixedly connected with a middle bin, the inner walls of the two sides of the middle bin are fixedly connected with straight pipes, an inner cylinder is fixedly connected between the two straight pipes, and the inner wall of the inner cylinder is provided with through sieve holes. More than three lantern rings are fixedly connected to the outer wall of the inner cylinder, arc-shaped blades are arranged on the outer walls of the lantern rings, drainage blocks which are symmetrically installed are fixedly connected to the inner walls of the two sides of the middle bin, and flow grooves with inclined angles are formed in the inner walls of the drainage blocks. The middle cylinder and the middle bin are arranged, separated impurities cannot enter the inner cylinder again through the