Dust classification detection device

The utility model discloses a dust classification detection device which comprises a detection device body, rotating shafts are arranged on the surfaces of the two sides of the bottom of the detection device body, outer pipes are installed at the ends, away from the detection device body, of the two rotating shafts respectively, inner pipes are movably connected to the interiors of the outer pipes, and end pipes are installed in the inner pipes. The top end of the end pipe extends out of the inner pipe, a sliding block is arranged at the end, in the outer pipe, of the inner pipe, movable grooves are formed in the two ends of the sliding block, movable blocks are arranged in the movable grooves, springs are arranged between the movable blocks and the movable grooves, open holes are formed in the surface of the top of the outer pipe in a penetrating mode, and two clamping frames are movably installed on the surface of the bottom of the detection device body. According to the dust classification detection device