Novel compound type thermal insulation pipe

The invention discloses a novel compound type thermal insulation pipe. The novel compound type thermal insulation pipe comprises a pipe body, a thermal-insulation layer, a waterproof layer and a stabilization layer, wherein the pipe body is prepared from the following raw materials: tripropylpolyethylene, zinc stearate, sodium tripolyphosphate, a maleic anhydride acrylic copolymer, calcium carbonate, tartaric acid, paraffin oil, rigid polyurethane, dioctyl phthalate and oxidized polyethylene wax; the thermal-insulation layer is prepared from the following raw materials: polyimide, the rigid polyurethane, asbestos, pearlite, trioctyl phosphate and stearic acid. According to the novel compound type thermal insulation pipe, the pipe body is provided with the thermal-insulation layer, the waterproof layer and the stabilization layer, so that the pipe has waterproof, thermal insulation and anti-ultraviolet functions; influences, caused by the fact that water permeates into media conveyed inthe pipe, on the pipe ca