The utility model provides a junked tire replaces processing system of partial cement kiln fuel relates to the solid waste processing technique field, including the boulder crusher who sets gradually,the fine crusher, wire separator and conveyer, boulder crusher is used for carrying out the one -level breakage with junked tire, form junked tire coarse crushing piece, the fine crusher is used forcarrying out the second grade breakage with junked tire coarse crushing piece, form junked tire piece in small, broken bits, wire separator is used for carrying out the broken steel wire separator that will thoughtlessly have of third grade with junked tire piece in small, broken bits and gets rid of, obtain junked tire fuel piece, the conveyer is arranged in carrying junked tire fuel piece to thecement kiln and burns, in order to replace partial cement kiln fuel alleviated to adopt and burned and landfill treatment junked tire, a large amount of energy had both been consumed, will produce environmental pollution's technical problem, the pollution and the pollutant emission that had both reduced the environment have been reached, the energy has still been practiced thrift simultaneously,the technological effect of cement kiln production to the consumption of raw coal has been reduced.