This utility model relates to the field of liquid level gauge technology and discloses an explosion-proof magnetic liquid level gauge, including a measuring plate, a measuring tube disposed on the rear side of the measuring plate, a flip-up indicator disposed on the front side of the measuring plate, a warning
assembly connecting the top of the measuring tube to the warning indicator, a connecting
rope fixedly connected to the inner wall of the measuring tube, a magnetic component slidably connected to the outer wall of the connecting
rope, a float fixedly connected to the bottom of the magnetic component, a corrugated compensator fixedly connected to the top and bottom of the measuring tube, a first connecting
pipe disposed at the end of the corrugated compensator, a third connecting
pipe disposed at the end of the first connecting
pipe, and a
piston assembly connecting the inner wall of the third connecting pipe to a second connecting pipe. In this utility model, the magnetic liquid level gauge integrates a pressure safety protection function. When the pressure inside the tank exceeds the limit, the top warning indicator immediately alarms, and the operator can quickly drive the
piston assembly to
cut off the connecting pipe, preventing leakage and explosion risks while supporting pressurized disassembly and maintenance.