Composite silencer

The utility model discloses a composite silencer which comprises an outer silencing pipe, an inner silencing pipe and a connecting supporting piece, the connecting supporting piece is used for connecting the inner silencing pipe and the outer silencing pipe, and an air inlet is formed in one side of the connecting supporting piece. The two ends of the silencing inner pipe are open, one end of thesilencing inner pipe is embedded in the connecting supporting piece and communicated with the air inlet, and the diameter of the silencing inner pipe is larger than the caliber of the air inlet. One end of the silencing outer pipe is arranged on the connecting supporting piece in a sleeving mode, the other end of the silencing outer pipe is arranged in a closed mode, an exhaust port is formed in the side wall of the silencing outer pipe, a labyrinth type airflow channel is formed between the silencing inner pipe and the silencing outer pipe, the labyrinth type airflow channel is filled with sound absorption materials,