Anti-knock-down unmanned aerial vehicle

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to an anti-knock-down unmanned aerial vehicle which comprises an unmanned aerial vehicle body, vehicle arms are fixedly installed at the four corners of the unmanned aerial vehicle body, propeller machines used for enabling the unmanned aerial vehicle body to fly are installed at the tail ends of the vehicle arms, and a camera used for aerial photography is assembled at one end of the lower surface of the unmanned aerial vehicle body. A recoverer is fixedly mounted on the lower surface of the unmanned aerial vehicle and close to one side of the camera, and a protective net knock-out device is fixedly mounted on the lower surface of the unmanned aerial vehicle and located below the recoverer. The unmanned aerial vehicle can block foreign matters thrown to the unmanned aerial vehicle and prevent the unmanned aerial vehicle from being shot down, so that the unmanned aerial vehicle has a protection function of p