Natural gas transportation and distribution filtering device

The invention relates to the technical field of natural gas filtering, and particularly discloses a natural gas transportation and distribution filtering device which comprises a filtering box, a gas inlet pipe, a gas outlet pipe and a support, the gas inlet pipe and the gas outlet pipe are arranged on the two sides of the filtering box, and natural gas is conveyed into the filtering box through the gas inlet pipe and filtered in the filtering box; the gas inlet pipe conveys filtered natural gas out of the filter box, the gas outlet pipe conveys filtered natural gas out of the filter box, the support is fixedly connected to the outer wall of the filter box and fixes the filter box, the filter element is connected into the filter box and communicates with the gas outlet pipe, and the trigger assembly is connected to the gas inlet pipe and the gas outlet pipe. Whether the filter element in the filter box is blocked or not can be monitored through the trigger assembly, the trigger assembly can be started when th