Farmland maintenance device for high-stem crops

The utility model discloses a high-stem crop farmland maintenance device, which relates to the technical field of crop maintenance and comprises a fixed base, the upper surface of the fixed base is fixedly connected with a guide plate, the lower surface of the guide plate is fixedly connected with a positioning plate, and the lower surface of the positioning plate is fixedly connected with an illuminating lamp. A communicating pipe is arranged on the right side of the guide plate, a balance weight plate is fixedly connected to the lower surface of the communicating pipe, a spray head is fixedly connected to the lower surface of the communicating pipe, and an adjusting swing mechanism is arranged on the left side of the guide plate. According to the device, the balance weight plate is arranged, the angle of the communicating pipe is kept balanced, the threaded connecting pipe is arranged, and an external water pipe is connected, so that sprayed pesticide or a water source enters the communicating pipe, the adj