Novel air duct silencing device

The utility model relates to a novel air pipe silencing device which comprises an air pipe body, a vacuum cavity is formed in the air pipe body, a sealing plate is fixedly connected to the interior of the air pipe body, silencing cotton is fixedly connected to the interior of the sealing plate, a net plate is fixedly connected to the interior of the silencing cotton, and the net plate is fixedly connected to the interior of the sealing plate. The outer portion of the air pipe body is fixedly connected with a mounting structure. According to the novel air pipe silencing device, the silencing and noise reduction effect of the silencing device is better through the arrangement of the vacuum cavity, the excellent suction and noise reduction capacity is conveniently achieved through the arrangement of the silencing cotton and the net plate, the silencing and noise reduction effect of the silencing device is greatly improved, and the hook and the air pipe body are conveniently installed together through the arrange