Agricultural water-saving irrigation and fertilization device

The utility model relates to the field of agricultural irrigation, and in particular relates to an agricultural water-saving irrigation and fertilization device. The agricultural water-saving irrigation and fertilization device comprises a submerged pump, a check valve, a filter, a fertilizer dissolving tank and a positioning irrigation pipe network, wherein one end of the check valve is communicated with the submerged pump and the other end of the check valve is communicated with a liquid inlet of the filter; a liquid outlet of the filter is communicated with the positioning irrigation pipe network by virtue of a tee valve; a tee joint is communicated with the fertilizer dissolving tank; the positioning irrigation pipe network comprises a plurality of irrigation pipes, and the multiple irrigation pipes share a general water inlet; and water outlets of the multiple irrigation pipes are distributed in the mode of a rectangular array. Since water sprayed from the water outlets of the multiple irrigation pipes is uniformly distributed in a farmland, the irrigation and fertilization device disclosed by the utility model can be used for avoiding water resource waste caused by flooding irrigation; and the agricultural water-saving irrigation and fertilization device, which directly irrigates water to the various parts of the farmland, has the advantages of convenience in fertilization, time saving and labor saving.