The coarse cereal mill mainly consists of a feed hopper, a rotor, a toothed disc, a sieve, a casing, a base, a motor and other parts. When the material enters the crushing chamber, it is quickly crushed into fine powder or slurry under the continuous impact of round teeth and flat teeth and the rubbing of toothed discs, and is discharged out of the room through a sieve hole through a discharge hole under the action of centrifugal force and airflow.