Waste cigarette sectioning machine

The utility model relates to a waste cigarette sectioning machine which can solve the problem that cut tobaccos and tobaccos are poorly separated and waste cigarettes can not be effectively recycled. The structure is that a plurality of annular grooves are arranged on a colloid carrier roller on the upper portion of a frame, cross sections of the annular grooves are U-shaped, a strip cutting knife roller formed by circular metal blades which are evenly distributed on a roll shaft is arranged on the frame on the upper portion of the colloid carrier roller, the circular metal blades are inserted in the centers of the annular grooves of the colloid carrier roller, a colloid pressing roller contacted with the colloid carrier roller is arranged on the upper portion of the colloid carrier roller through a pressing spring, the U-shaped annular grooves corresponding to the colloid carrier roller are arranged on the colloid pressing roller, a closed O-shaped channel is formed, a river diversion device is arranged at t