The utility model relates to a double-wall corrugated pipe. The double-wall corrugated pipe comprises a corrugated wall layer and a lamination layer, wherein the lamination layer and a corrugated wall layer are fixedly formed through a die. The two end openings of the double-wall corrugated pipe are flat end openings, namely, the two end openings of each double-wall corrugated pipe are designed to be flat end openings, and the flat end openings are connected in a hot smelt connection mode. The double-wall corrugated pipe has the advantages that after the flat end openings of the plastic double-wall corrugated pipes are connected in a hot smelt mode, the purpose of zero leakage can be achieved, connection leakproofness is enhanced, and the defect that a rubber seal ring is not matched with a pipe fitting in service life, so that the service life is shortened is overcome. Compared with an existing bell and spigot plastic double-wall corrugated pipe, the double-wall corrugated pipe is simple in technology and high in production efficiency; because the wall thickness of inner and outer layers, the lamination wall thickness and the wall thickness of the flat end openings are increased, the physical and mechanical properties of the double-wall corrugated pipe are higher than those of an existing national standard HDPE double-wall corrugated pipe of the same specification, and it can be avoided that in the carrying and stacking processes, the flaring of the pipe fitting is prone to cracking, so that waste is generated.