Flying dust detection and collection device

The utility model relates to the technical field of flying dust collecting devices, and discloses a flying dust detecting and collecting device which comprises a base, a stand column, a fan cover and a connecting pipe, a dust collecting cover is fixedly installed at the other end of the connecting pipe, two sets of connecting blocks are fixedly installed at the bottom of the periphery of the connecting pipe, and two sets of rotating rings are rotationally connected to the periphery of the connecting pipe. Magnets are symmetrically and fixedly mounted on the two sides of the periphery of the filter membrane, and damping rotating shafts are rotationally connected between the two rotating rings. The connecting blocks at the bottom of the rotating ring and the connecting blocks on the two sides of the bottom of the inner wall of the connecting groove penetrate through the damping rotating shaft, so that the rotating ring can be rotationally staggered from the connecting groove, and the filter membrane can be quic