Landscape garden ecological maintenance device

The utility model discloses a landscape garden ecological maintenance device in the technical field of garden equipment, which comprises a base, a rechargeable battery, a storage tank, a direct-current booster pump, a U-shaped frame, a threaded rod and threaded sleeve assembly, a direct-current positive and negative rotation motor, a lifting lead screw pair, a hollow brush body and a pipe winding and unwinding device, wherein universal wheels are mounted at four corners of the bottom of the base; a plastic hose connected with the output end of the direct-current booster pump and the transverse pipe is wound on the pipe winding and unwinding device, the input end of the direct-current booster pump is connected with the storage tank through a pipeline, the direct-current forward and reverse rotation motor and the direct-current booster pump are electrically connected with the rechargeable battery, and the hollow brush body moves up and down through the lifting lead screw pair and the motor. And meanwhile, lime