Sludge dewatering device

The utility model discloses a sludge dewatering device which comprises a base, a support is fixedly connected to the upper end face of the base, baffles distributed front and back are fixedly connected to the upper end face of the support, fixing plates are fixedly connected to the upper end faces of the two baffles, a first rotating shaft is rotationally connected between the two fixing plates, and a pressing roller is fixedly connected to the outer wall of the first rotating shaft. One end of the first rotating shaft extends to the rear side of the rear fixing plate and is fixedly connected with a driven wheel, the driven wheel drives the first rotating shaft to rotate, the first rotating shaft drives the pressing roller to rotate, and when sludge subjected to extrusion dewatering reaches the position below the pressing roller, the sludge is still soft after being extruded to remove water; the supporting rollers are arranged on the supporting rollers, so that the sludge with moisture removed through extrusi