Lifting device for collecting box of central dust collector

The utility model relates to the technical field of dust collector collecting box lifting devices, and discloses a central dust collector collecting box lifting device which comprises a bottom plate, four telescopic rods are fixedly installed on the top of the bottom plate, a supporting plate is fixedly connected among the tops of the four telescopic rods, and two sliding grooves are formed in the top of the supporting plate. The top of the supporting plate is slidably connected with a collecting box. According to the lifting device for the collecting box of the central dust collector, the collecting box can slide along the sliding groove when needed through the design of the sliding groove, so that the collecting box can be accurately positioned, the stability and reliability of the collecting box in the sliding process can be ensured, and the collecting box can be lifted when needed through the design of the lifting mechanism; the lifting mechanism is driven by an electric or hydraulic system so as to provi