Air draft pipeline for mine ventilation

The utility model relates to the technical field of mine ventilation, in particular to an air draft pipeline for mine ventilation, which comprises an air draft pipeline body, one end of the inner side of the air draft pipeline body is fixedly connected with an exhaust fan, the side surface of the air draft pipeline body is provided with a mounting groove, and the inner side of the mounting groove is slidably connected with a dustproof plate. A sliding groove is formed in the inner side of the air draft pipeline body. The dustproof plate is installed on the inner side of the air draft pipeline body, so that when air draft is conducted in a mine, dust can be effectively blocked on the side, close to the collecting plate, of the dustproof plate through the filtering effect of the dustproof plate, and the dust falls into the inner side of the collecting plate; and dust falls to the inner side of a collecting box through a discharging groove and a discharging pipe, so that the dust is collected, and the dust is pr