Various waste liquid and leach water containing high concentration of salt from landfills, are put into Cyclone Dryer directly. In the drying process, it is separated into solid and waste steam. The waste steam is transported to the Teinenpi Deodorant Furnace, where, employing the direct burning system, the elements of smell, BOD, and COD are treated by oxidizing decomposition. The waste steam turns out a clean without a drop of waste water and smell, and can be emitted into the atmosphere.