Vertical layering drip-irrigation emitter

The utility model relates to drip irrigation equipment, in particular to a vertical layering drip-irrigation emitter, which solves the problem that the existing drip-irrigation emitter is not suitable for drip irrigation of rooted crops. The vertical layering drip-irrigation emitter comprises a coiled pipe and a filter communicated to a water inlet of the coiled pipe, wherein the coiled pipe comprises two U-shaped pipes arranged from top to bottom, the U-shaped pipes are arranged end to end, surfaces of elbows of the U-shaped pipes are provided with drip holes, a diffusing drip cavity is fixed under the elbow of each U-shaped pipe, the surface of the diffusing drip cavity is provided with micropores, and inner cavities of the diffusing drip cavities are communicated with the coiled pipe via the drip holes on the surfaces of the elbows. The vertical layering drip-irrigation emitter solves the problem that the existing drip-irrigation emitter is not suitable for drip irrigation for rooted crops, not only realizes layering synchronous uniform drip irrigation but reduces surface evaporation of moisture, and is not easy to be blocked both inside and outside, uniform in water drawing and suitable for drip irrigation of rooted crops (such as nuts, fruits, economic forests and rare varieties of trees).