Soil crushing, refining and screening equipment for agricultural seedling culture

The utility model relates to the technical field of agricultural seedling raising, and discloses agricultural seedling raising soil smashing, refining and screening equipment which comprises supporting legs, a processing box is installed on the tops of the inner side faces of the supporting legs, an installation frame is installed on the top of the inner wall of the processing box, and a rotating shaft is rotationally connected to the middle of the lower surface of the installation frame. A crushing roller is mounted on the rotating shaft, a driving motor is arranged in the middle of the upper surface of the mounting frame, and the output end of the driving motor is in key connection with the top end of the rotating shaft. According to the soil crushing, refining and screening equipment for agricultural seedling culture, through cooperative use of second return springs and clamping seats, the clamping seats can drive a mounting frame to move up and down under the combined action of the second return springs a