Corrosion-resistant heat insulation type submarine cable protection pipe

The utility model relates to the technical field of submarine cable protection pipes, in particular to a corrosion-resistant heat insulation type submarine cable protection pipe which comprises an inner pipe and an outer pipe arranged outside the inner pipe, a plurality of protruding edges used for improving structural strength are installed on the outer wall of the inner pipe, an aerogel layer used for heat insulation is further arranged between the inner pipe and the outer pipe, and a corrosion-resistant layer used for corrosion prevention is installed outside the outer pipe. The protruding edges and the inner pipe are of an integrally-formed structure. The anti-corrosion layer is an inorganic anti-corrosion coating layer; through the arrangement of the inner pipe, the outer pipe and the ribs, the structural strength of the protection pipe can be improved, and the protection effect of the protection pipe on the submarine cable is improved; through the arrangement of the aerogel layer, an effective heat insu