Farmland irrigation spray gun

The utility model discloses a farmland irrigation spray gun which comprises a spray gun main body (2), a booster pump (7) and a spray gun connecting pipe (16), a water inlet of the booster pump (7) iscommunicated with a sprinkler pipeline (15) of the central pivot type sprinkler, and a water outlet of the booster pump (7) is connected with a water inlet of the spray gun main body (2) through a spray gun connecting pipe (16); a nozzle (12) is arranged at the front part of the spray gun main body (2); the tail portion of the spray gun main body (2) is installed at the tail end of the center pivot type sprinkler span body (1) through the spray gun horizontal rotating mechanism (14), the implementation mode that a motor is directly connected to serve as the horizontal rotating mechanism is adopted, and the problem that in the prior art, due to the fact that a worm and gear structure is adopted, irrigation accuracy is low is solved. 本实用新型公开了一种农田灌溉喷枪，包括喷枪主体(2)、增压泵(7)和喷枪连接管(16)；所述增压泵(7)的进水口与中心支轴式喷灌机的喷灌机管道(15)相连通，增压泵