Gas dredging pipe

The utility model discloses a gas dredging pipe, and relates to the technical field of chemical safety, the gas dredging pipe comprises an outer shell, a dredging structure is mounted in the outer shell, an activated carbon filter plate is embedded in the right side wall of the outer shell, a collecting box is mounted at the bottom of the outer shell, and the upper end of the collecting box is mounted at the bottom of the outer shell; a damping supporting structure is installed at the bottom of the collecting box, an input pipe is arranged on the left side wall of the outer shell, and a material suction structure is installed at the left end of the input pipe. After impurities blocked in the chemical pipeline are pumped out through the dredging pipe, the impurities fall into the collecting box under the action of the material blocking net, so that the impurities cannot be blocked in the dredging pipe, the activated carbon filter plate can filter gas flowing out during dredging and adsorb harmful substances an