Mining fire-resistant safety warning optical cable

The invention provides a mining fire-resistant safety warning optical cable, and belongs to the technical field of communication optical cables. The mining fire-resistant safety warning optical cable comprises a cable core, a metal armor layer, an inner sheath and an outer sheath, wherein the metal armor layer, the inner sheath and the outer sheath sequentially coat the cable core; the cable core adopts a high-strength skeleton type structure and comprises optical fibers, a loose sleeve containing a sleeve water-blocking material, a fire-resistant layer outside the optical fiber sleeve, a central reinforcing piece, an optical cable skeleton and a water-blocking wrapping tape; the inner sheath is a gear-type inner sheath, and a groove is formed in the outer part of the inner sheath; the groove is filled with an expansion type fire extinguishing agent; a colored tape and a fluorescent optical fiber are embedded in the outer side of the outer sheath. The mechanical performance and the environmental performance o