Novel pipeline muffler

The utility model discloses a novel pipeline muffler, which comprises a muffler cover. The muffler cover adopts a labyrinth interior structure, small holes are densely distributed on the muffler cover, and blind end of the muffler cover is arc-shaped, and the other end of the muffler cover is fixedly connected with a flange. The novel pipeline muffler has reasonable structure and good muffling effect.