Punching device with dustproof effect

The utility model discloses a perforating device with a dustproof effect, and belongs to the field of house construction engineering, the perforating device comprises a device base, a lifting column, a supporting tray, a rotating assembly and a drilling machine assembly, and the device base is provided with a transverse moving device; the lifting column is mounted on the transverse moving device; the supporting tray is mounted on the main body of the lifting column, and the height of the supporting tray is adjustable; the rotating assembly is installed at the telescopic end of the lifting column. The drilling machine assembly is installed on the rotating assembly. Wherein a dust isolation assembly is arranged on the outer side of a drill bit on the drilling machine assembly, and in the drilling process, the end of the dust isolation assembly is attached to the surface of an object to be drilled; according to the technical scheme, the lifting column can drive the drilling machine assembly to move up and down,