NOVELTY - Comprehensive processing and secondary pollution control of domestic garbage comprises rough sorting of domestic garbage, breaking and separating, collecting large garbage, screening and sorting iron magnetic material and non-degradable material, recycling, domestic garbage preprocessing comprising biological fermentation preprocessing degradable material, separating iron magnetic material and non-degradable material, aerobic composting, preparing biological organic fertilizer, manufacturing refuse-derived fuel, and secondary pollution control.    USE - Comprehensive processing and secondary pollution control of domestic garbage (claimed).    ADVANTAGE - The method is easy to operate and control and harmless, has improved mechanical sorting efficiency and energy recycling effect, and realizes domestic garbage reduction and reclamation.    DETAILED DESCRIPTION - Comprehensive processing and secondary pollution control of domestic garbage comprises rough sorting of domestic garbage, breaking and separating, collecting large garbage, screening and sorting iron magnetic material and non-degradable material, recycling, domestic garbage preprocessing comprising biological fermentation preprocessing degradable material at controlled temperature of 30-65 degrees C, where water content of the material after processing is reduced by more than 60%, separating iron magnetic material and non-degradable material, separating and recycling metal of different particle sizes, sieving, aerobic composting at 40-70 degrees C, where water content of domestic garbage compost is reduced by more than 80%, decomposing to obtain biological organic fertilizer, manufacturing refuse-derived fuel by taking combustible garbage and lime (80 wt.% (dry) of the total weight), mixing, crushing, and extruding, secondary pollution control in refuse processing plant comprising mechanical sorting device, fermentation chamber top provided with malodorous gas collecting pipeline, ozone after entering washing tower, dual biological filter tank filled with filter material, and garbage biological treatment chamber.