Sludge cleaning device

The utility model discloses a sludge cleaning device which comprises a sludge cleaning machine body and a sludge cleaning head, wherein the sludge cleaning machine body and the sludge cleaning head are arranged on a sludge cleaning rack. According to the sludge cleaning device, through the arrangement of a convenient-to-replace mechanism, when a sludge cleaning head needs to be cleaned, a pull ring is moved outwards, a movable rod piece can be driven to move in an inner movable groove, after a first spring is stretched, a positioning clamping block is driven to be pulled out of insertion in an inner concave clamping groove, and a locking insertion plate is pulled out of insertion in an inner insertion groove; and fixing of the penetrating block is relieved, then the sludge cleaning head is moved downwards, the penetrating block is driven to be pulled out of the penetrating opening, and the connecting frame is connected with the sludge cleaning head. And an inner insertion hoop is mounted on the connecting fra