Crop straw crusher

The utility model relates to the field of straw crushers, in particular to a crop straw crusher which comprises a machine box, a feeding hopper penetrates through the upper portion of the machine box, and a discharging hopper penetrates through the lower portion of the machine box. The crushing cutter rotates in the machine box, and one end of the crushing cutter penetrates through the machine box and is in transmission connection with a motor; the lower stirring roller rotates on the inner bottom surface of the feeding hopper, and the lower stirring roller is in transmission connection with the crushing cutter through a belt; according to the utility model, the upper stirring roller and the lower stirring roller which rotate in opposite directions are arranged at the feeding part of the crusher and are used for gripping crop straws into the case, so that the straws are automatically conveyed, the hands of an operator are released, the operation is simple, the labor intensity of the operator is reduced, the l