The utility model relates to a novel discharging port of a mixing machine. The novel discharging port comprises bolts, a circular iron plate, a nylon plate, a silicon rubber sheet, a nylon ring and an outer iron ring, wherein the circular iron plate and the nylon plate cover the top of the outer iron ring in sequence from top to bottom and are fixedly arranged on the outer iron ring through the bolts; the nylon ring is arranged on the inner surface of the outer iron ring; the silicone rubber sheet is arranged between the nylon plate and the top of the outer iron ring. As the silicon rubber sheet is arranged, slurry and the silicon rubber sheet from rebound resonance when the novel discharging port is in use, so that the agglomeration of the slurry in the discharging port is prevented.