Railway expansion joint protection groove with efficient fire-resistant function

The utility model provides a railway expansion joint protection groove with an efficient fire-resistant function, and belongs to the technical field of railway construction. The railway expansion joint protection groove with the efficient fire-resistant function comprises a bridge part, a fire-resistant assembly and a heat dissipation assembly, the two ends of a fire-resistant heat insulation groove are arranged on the upper surface of a first multi-layer flame-retardant pad, a single-layer flame-retardant pad is located below the fire-resistant heat insulation groove, and a second multi-layer flame-retardant pad is arranged below the single-layer flame-retardant pad. The second multi-layer flame-retardant pad is located in the expansion joint, and the fireproof heat insulation groove, the single-layer flame-retardant pad and the second multi-layer flame-retardant pad are jointly provided with interior angle bolts. The heat dissipation assembly is arranged on the outer side of the fireproof heat insulation gr