Device for quickly pruning urban environmental sanitation green belt

The invention discloses a device for quickly pruning an urban environmental sanitation green belt. The device comprises a pruning frame, wherein the pruning frame is formed by fixedly connecting the ends of two L-shaped plates through a first hydraulic cylinder, the two sides of the inside of the first hydraulic cylinder are fixedly connected with first connecting blocks, and first rotary shafts are rotatably connected in the two first connecting blocks through bearings. The device has the advantages that by adopting the design that first cutting chains on two sides of the inside of the pruning frame are driven by second electric telescopic rods to telescope and second cutting chains are driven by first electric telescopic rods to telescope, the cutting lengths of the corresponding cuttingchains can be effectively changed through telescoping of the corresponding electric telescopic rods when the green belt is cut, accordingly the requirement of pruning different volumes and sizes of green belts is met, and th