The invention discloses a method for recycling corrosive pasty material waste heat and raising the waste heat temperature level to replace a one-time heat source through natural circulation boiling heat transfer. A natural circulation boiling heat absorbing efficient waste heat recycling mode of pasty material forced convection heat releasing inside a rise pipe and low-boiling-point heat transfer working mediums outside the pipe is built through the pasty material perpendicular conveying height required by a technology system, and circulation power does not need to be additionally added; on the basis whether the waste heat temperature level meets the technology requirement or not, both direct using and temperature raising using can be conducted, the ratio of the sum of the heat used for raising the temperature to consumed power is not smaller than 10, and meanwhile, the ratio of the obtained cold quantity to the consumed power is not smaller than 5. By means of the method for recycling the pasty material waste heat, the remarkable effects on energy saving, emission reduction and waste heat recycling economy improving in the related industrial fields can be achieved.