Building security protective fence

The utility model discloses a building security protective fence which comprises a water injection protective plate body, a clear water injection pipe, a waste water output port, a rotating bolt plug and a security protective fence assembly. The security protection guardrail assembly comprises a connecting rotating block, a rotating supporting shaft, a rotating shaft supporting plate, a rotating supporting protection plate, a mist spraying fixing clamp, a dust falling mist spraying head, a connecting fixing buckle, a buckle fixing block and a buckle fixing groove. The utility model belongs to the technical field of building protective guards, and particularly relates to a building security protective guard which effectively solves the problems that an existing building security protective guard is inconvenient to fold and store, poor in protective effect and inconvenient to remove dust in real time. The building security protective fence achieves the purposes that the building security protective fence is con