Warning device

The invention relates to the technical field of coal mines, in particular to a warning device. The warning device comprises a cover body, a shell, a rotary drum, a handle, a lamp and a connecting frame, the cover body and the shell are matched and detachably connected to form a cavity, a plurality of first through holes are formed in the outer wall of the shell, the cover body is provided with second through holes, the rotary drum is movably arranged in the cavity, and the handle is arranged on the rotary drum. The rotary drum is provided with a second through hole, the handle is detachably and fixedly connected with the rotary drum through the second through hole, the lamp is arranged in the rotary drum and detachably and fixedly connected with the shell, and the connecting frame is detachably fixed to one side of the shell. By rotating the rotary drum, the warning mark located on the side face of the rotary drum can be rapidly replaced, and operation is easy and rapid. Meanwhile, the warning marks are made