Agricultural spraying and mixing device

The utility model discloses an agricultural spraying and mixing device which comprises a box body, a water inlet is formed in the upper end of the box body, a cover body capable of being opened is arranged at the water inlet, a water pump is arranged outside the box body, a water inlet of the water pump is communicated with the bottom of the box body, a water outlet of the water pump is communicated with a first water outlet pipe and a second water outlet pipe, and a first valve body is arranged on the first water outlet pipe. A second valve body is arranged on the second water outlet pipe, the other end of the second water outlet pipe is detachably communicated with the cover body, a filter cartridge with an opening in the upper end is arranged in the box body, and the opening end of the filter cartridge is clamped in the water inlet. Water is pumped back to the filter cylinder from the bottom through the water pump, fertilizer or pesticide on the filter cylinder is impacted, circulation mixing is carried ou