Drip irrigation system for greenhouse planting

The utility model relates to the field of greenhouse planting, in particular to a drip irrigation system for greenhouse planting, which is characterized in that a frame body comprises an upper layer and a lower layer, two fertilizer barrels are mounted on the lower layer of the frame body, a connecting pipe is transversely mounted on the upper layer of the frame body, one end of the connecting pipe is communicated with a water inlet pipe, and the other end of the connecting pipe is communicated with a water outlet pipe; one side of the connecting pipe is communicated with two groups of fertilizer suction assemblies, each fertilizer suction assembly comprises a U-shaped pipe, two sides of the U-shaped pipe are respectively provided with a second switch valve and a third switch valve, the middle part of the U-shaped pipe is provided with a proportional fertilizer injection pump for sucking fertilizer, and the proportional fertilizer injection pump is communicated with the fertilizer barrel through a fertilizer