Animal husbandry forage grass processing device capable of grinding and smashing

The animal husbandry forage grass processing device comprises a box body, the upper end of the box body is fixedly connected with a feeding pipe, one side of the feeding pipe is provided with a rolling mechanism, the upper side of the box body is provided with a dust discharging assembly located on one side of the feeding pipe, the box body is internally provided with a smashing mechanism, and the box body is internally provided with a crushing mechanism. And a screen is arranged on the lower side of the crushing mechanism in the box body. By the adoption of the structure, pasture is rolled to be bent through the rolling mechanism so that the pasture can be smashed more easily, the rolled pasture is smashed through the smashing mechanism, the smashed pasture falls onto the screen, the pasture meeting the smashing standard falls, and therefore the pasture can be smashed more conveniently. Pasture which does not meet the crushing standard continues to be crushed upwards through the crushing mechanism under the