Gas pipeline intrusion prevention and leakage monitoring and early warning device

The utility model discloses a gas pipeline intrusion prevention and leakage monitoring and early warning device which comprises a pipe body, conical surfaces are arranged in the two ends of the pipe body, threaded grooves are formed in the two ends of the pipe body, sealing rings are installed in the two ends of the pipe body, and the outer sides of the two ends of the pipe body are movably sleeved with clamps. The outer side of the pipe body is fixedly sleeved with a mounting shell, and a control bin is arranged in the mounting shell. By means of the arranged pipe body, when foreign matter appears in the pipe body and flows to the top of the bottom bin in the pipe body, the foreign matter like a solid or a non-Newtonian fluid can pass through the top of the support, under the action of gravity, the support can be pressed to move downwards, a contact button is pressed downwards, and the contact button can transmit a pressing signal to the controller; if the pressure signal appears for a long time or the frequ