Crushing device for pre-processing of plant leaves

The utility model discloses a crushing device for pre-processing plant leaves, which comprises a crushing box, a rotary crushing mechanism and a pair of pre-crushing mechanisms, the rotary crushing mechanism is arranged in the crushing box, the rotary crushing mechanism comprises a blade shaft, a guide filter screen is arranged outside the blade shaft, the blade shaft is connected with a plurality of first blade groups and second blade groups, and the first blade groups and the second blade groups are arranged in the crushing box. A pair of pre-smashing mechanisms is arranged in the smashing box, the first blade set and the second blade set are distributed at intervals, fan blades are connected to the first blade set and penetrate through the first blade set, shovels are connected to the second blade set, and a first motor is connected to the smashing box. Through the arrangement of corresponding mechanisms on the crushing device, the occurrence of non-uniform crushing is reduced, so that the time waste is re