Noise reduction equipment for warm ventilation pipe

The utility model relates to the technical field of warm ventilation pipes, and discloses noise reduction equipment for a warm ventilation pipe, which comprises a connecting piece, one side of the connecting piece is fixedly connected with an embedded frame, the other side of the connecting piece is fixedly connected with an air pipe assembly, and the outer surface of the embedded frame is sleeved with an outer embedded frame. According to the noise reduction equipment for the warm ventilation pipe, through combined arrangement of the connecting piece, the inner embedded frame, the outer embedded frame and the closed vacuum assembly, when the warm ventilation pipe needs to be connected, the connecting piece is aligned to a clamping frame of the closed vacuum assembly, the outer embedded frame is connected to the inner embedded frame in a sleeving mode, the warm ventilation pipe is sealed, and therefore the sealing performance of the air pipe is improved; and meanwhile, vacuum is formed between the periphery o