Method for processing percolate by fluidized bed evaporation

The invention discloses a method for processing percolate by fluidized bed evaporation, relating to the technology of energy saving and environment protection. The method comprises: introducing landfill gas (or other fuel) and combustion air into a gasifier to burn so as to generate high-temperature gas; measures of injecting percolate and the like are utilized to lower high-temperature gas to proper temperature; then, the gas enters the fluidized bed evaporator to evaporate percolate which is injected into the fluidized bed; and fuel containing percolate evaporation gas is dedusted to enter a torch to be burnt or discharged after other processing. The method of the invention is not sensitive to percolate density and ingredients, has high processing efficiency, low energy consumption and low cost, does not have residual liquid and is suitable for decrement processing of refuse landfill percolate. The discharge related by the invention conforms to the existing relevant standard, and other fuel can be used for