Natural gas pipeline in-built general-type noise-elimination device

Provided is a natural gas pipeline in-built general-type noise-elimination device, relating to the technical field of pipe systems. The device is formed in a way that a flange sheet (1), a noise-elimination outer pipe (2), a noise-elimination inner pipe (3), an end cover (5) and a streamlined radome (6) are mutually welded. The noise-elimination inner pipe (3) having the end cover (5) at one end is sleeved inside the noise-elimination outer pipe (2) having the streamlined radome (6) at one end and then are fixedly connected with the flange sheet (1). The device enables aerodynamic noise of the natural gas pipeline to be controlled within national standards without impacts on pipeline transportation.