Heating and ventilation pipeline filtering device

The utility model relates to the technical field of heating and ventilation pipelines, and discloses a heating and ventilation pipeline filtering device which comprises a pipeline and connecting shafts installed at the two ends of the pipeline, and further comprises a transmission mechanism which is fixedly arranged on one side in the pipeline and used for accelerating the flowability of circulating liquid and facilitating cleaning of the filtering device in the device. The transmission mechanism comprises a driving shaft arranged on one side in the pipeline, and the driving shaft is rotationally connected with a rotating wheel; the filtering mechanism is fixedly mounted on the side, opposite to the transmission mechanism, in the pipeline and used for filtering impurities mixed in the circulating liquid; the rotating wheel drives the flowing plate to rotate, the flowing plate accelerates the flowing speed of circulating liquid, so that the impurity filtering speed is increased, the filtering efficiency is imp