Automobile tail gas discharging and filtering device with automatic cleaning function

The invention relates to the technical field of automobile tail gas treatment, and discloses an automobile tail gas discharging and filtering device with an automatic cleaning function. A treatment box is included, a connecting pipe used for being connected with an automobile tail gas pipe is fixedly mounted on the right side of the treatment box, and a stop block is arranged in the treatment box. A heat conduction block is arranged on the side, facing the connecting pipe, of the stop block, a heat conduction rod is fixedly installed at the left end of the heat conduction block, and a resistance wire is fixedly connected to the tail end of the heat conduction rod. High-temperature automobile tail gas exhausted by an automobile enters a combustion chamber through the connecting pipe, heat transfer occurs between the automobile tail gas and the resistance wire through the heat conduction block and the heat conduction rod, the temperature of the resistance wire is gradually increased, and when the temperature of