Straw crushing equipment

The straw crushing equipment comprises a box body, a crushing mechanism, a screening mechanism and a recycling mechanism, the box body comprises a feeding port, a discharging port and a recycling port, the crushing mechanism and the screening mechanism are both arranged in the box body, the recycling mechanism is arranged on the outer side of the box body, and the recycling mechanism is communicated with the recycling port; the feeding hole is used for receiving straws into the box body, so that the straws fall into the crushing mechanism; the crushing mechanism is used for receiving straw fed from the feeding port and crushing the straw into particles, so that the particles fall into the screening mechanism; the screening mechanism is used for receiving the particles, so that the particles conforming to the preset particle size enter the discharging opening, and the particles not conforming to the preset particle size are fed into the recycling opening; and the recycling mechanism is used for receiving the p