To　make　better　use　of　waste　energy　for　the　industrial　heating　processes,　dual　pressure　condensation　heating　high　temperature　heat　pump　system　(DPS)　is　proposed,　to　achieve　the　purpose　of　step　heating.　Meantime,　environmental-friendly　working　fluid　hydrocarbons　are　selected　as　the　components　of　the　mixtures.　The　energy,　exergy,　environmental　and　economic　(4E)　analysis　models　are　established,　and　the　system　performance　is　optimized,　compared　with　single-stage　(SS)　system　and　fossil　fuel-fired　boilers.　There　is　an　optimal　intermediate　water　temperature　corresponding　to　the　highest　system　energy　efficiency.　The　maximum　COP　of　5.29　is　achieved　when　R600a/R601a　(50/50)　is　adopted,　improved　by　18.23%　and　24.18%　compared　with　DPS　and　SS　systems　using　pure　working　fluid.　By　using　zeotropic　working　fluid,　the　irreversible　heat　transfer　loss　can　be　significantly　reduced.　The　overall　exergy　loss　with　R600a/R601a　(50/50)　is　21.68-41.27%　and　12.26-16.69%　lower　than　pure　SS　and　pure　DPS　systems,　respectively.　In　terms　of　environmental　and　economic　aspects,　DPS　with　zeotropic　working　fluid　shows　excellent　performance.　In　comparison　with　boiler,　pure　DPS　and　pure　SS　system,　the　reduction　of　carbon　emissions　through　the　whole　lifetime　is　81.22%,　15.35%　and　20.04%,　and　the　life　cycle　cost　is　decreased　by　93.91%,　9.70-15.05%,　and　27.89-38.07%.