Novel outer cover box for dust collector

The utility model relates to a novel outer cover box for a dust collector. The novel outer cover box consists of fixing casings A(1), a fixing casing B(2), a sliding lock (3), a fixed opening (4) and a base (5), wherein two pairs of mutually symmetrical fixing casings A(1) are arranged in the outer cover box, and the fixing casings A(1) are mutually matched with a fixing groove of the dust collector, so that the dust collector is firmer in the outer cover box, and the phenomenon that the dust collector is adhered to the inner wall due to rocking is avoided. The fixing casing B(2) is arranged outside the outer cover box, and the sliding lock (3) is mutually matched with the fixing casing B(2), so that the tightness of the outer cover box is enhanced, and the phenomenon that the dust collector becomes dirty and is out of service due to poor tightness is avoided. In the utility model, the plane base (5) is adopted, and the fixed opening can ensure that a handle of the dust collector is fixed, so that the outer c