Gravity impurity removing device for tobacco shred recovery

The utility model relates to the technical field of tobacco processing and production, in particular to a broken tobacco recovery gravity impurity removing device. A feeding hopper is arranged on one side of the middle of the vertical air pipe; the feeding hopper is obliquely arranged on the vertical air pipe; an impurity blanking opening is formed in the bottom of the vertical air pipe; a broken smoke collecting opening is formed in the top of the vertical air pipe; an air outlet is formed above the impurity blanking opening; the air outlet is annularly formed in the inner wall of the vertical air pipe; the other end of the air outlet is connected with an air inlet pipe; a fan A is arranged on the air inlet pipe; a sundry collecting box is arranged below the sundry blanking port; moving wheels are arranged at the bottom of the sundry collecting box; and the sundry blanking port and the crushed tobacco collecting port are of a conical structure, so that the problems that the crushed tobacco winnowing efficien