The high-efficiency dust removal coarse crusher for food is suitable for industries such as pharmaceuticals, chemicals, metallurgy, food, and construction. Processing hard, traditional Chinese medicinal materials, and difficult to crush materials, including crushing plastics, steel wires, etc. The composite rock crusher can also be used as a supporting equipment for the pre micro crushing process. It has low noise, a protective cover on the pulley, is safe and reliable, and is equipped with a cleaning safety switch. The motor is equipped with an overload protection device and a power interlock protection system.