Protective shell of emergency fire-fighting controller

The utility model relates to the technical field of emergency fire-fighting controllers, in particular to a protective shell of an emergency fire-fighting controller, which comprises a device body, a frame groove used for connection is arranged on the surface of the top end of the device body, a plurality of groups of grooves used for connection are arranged on the inner circumferential surface of the frame groove, a shell used for protection is inserted into the inner side of the frame groove, and the protective shell is arranged in the frame groove. A protruding block which is connected with the groove in a matched mode is integrally constructed on the inner circumferential surface of the shell. When a switch of the emergency fire-fighting controller needs to be operated and controlled and no proper knocking object exists, the rotating seat, located on the inner side of the top screw hole, on the periphery of the device body can be rotated, so that the rotating seat and the screw hole can be mutually screwe