Screwed mop bucket

The utility model discloses a screwed mop bucket. The mop bucket comprises a bucket body (8), a bucket cover (3) and a supporting board (11), wherein the supporting board (11) is fixedly arranged in the bucket body and provided with a disc sleeve body (13) with a water outlet (10), a chute (15) is formed in the disc sleeve body, a sliding block (14) is movably arranged in the chute, a pin shaft (12) is fixedly arranged on the sliding block, and a rotating device enabling the pin shaft to drive the sliding block to do relative horizontal movement is arranged in the bucket body. A mop is dehydrated in a mode of first extruding and then rotating, so the required moisture of the mop can be controlled as required to meet the requirements for mopping different floors by using the mop; and the mop also can be dried off for mopping the floor or airing. The mop bucket has a compact structure, is convenient and saves time and labor in operation, and has high dehydrating speed and good dehydrating effect.