The invention provides a compound expansion joint used in the petrochemical field. The compound expansion joint used in the petrochemical field is provided with an intermediate pipe assembly. Heat insulation linings are arranged on the inner wall of the intermediate pipe assembly, and two ends of the intermediate pipe assembly are separately connected to a set of external pressing corrugated pipeassemblies arranged back to back. The external pressing corrugated pipe assemblies comprise end pipes, corrugated pipes, corrugated pipe connection pipes, end ring assemblies, outer pipes, retaining ring assemblies with thermal insulation ceramic fibers, flow-guiding barrel assemblies with wear-resistant linings and dust-proof sealing rings, the corrugated pipes sleeves the end pipes, the heat insulation linings are arranged on the inner walls of the end pipes, one ends of the corrugated pipes are fixedly connected with the ends, close to the direction of an expansion center, of the end pipesthrough the corrugated pipe connection pipes, the other ends of the corrugated pipes are connected with one ends of the outer pipes through end ring assemblies sleeving the end pipes and having gaps with the end pipes, and the other ends of the outer pipes are connected to the intermediate pipe assembly. The compound expansion joint can completely solve the problem of corrosion failure of a cold wall pipeline high temperature expansion joint of a large refining and chemical plant, and the cost of expansion joint is reduced.