NOVELTY - Production device comprises primary separator (2), first crusher (3), winnowing machine (4), first metal separator (5), first dewatering machine (6), secondary crusher (7), second metal separator (8), second dewatering machine (9), mixer (11), derived fuel forming machine (12), dyer (13), sewage processing device (15), boiler (17), and waste heat recovery device (23).    USE - Urban waste production device used for manufacturing derivative fuel.    ADVANTAGE - The production device effectively reduces heat load of dryer, reduces boiler heat requirement, recycles heat and water, reduces energy consumption, and improves economic efficiency of system.    DETAILED DESCRIPTION - Production device comprises primary separator (2), first crusher (3), winnowing machine (4), first metal separator (5), first dewatering machine (6), secondary crusher (7), second metal separator (8), second dewatering machine (9), mixer (11), derived fuel forming machine (12), dyer (13), sewage processing device (15), boiler (17), and waste heat recovery device (23), in which garbage dump (1) is transferred to product yard (14) and passes through conveying belt that is connected with primary separator, primary crusher, winnowing machine, and metal separator, and further in primary dewatering device, secondary crusher, and metal separator. The two-level dehydration machine, mixer, derived fuel forming machine, and dryer are connected. The garbage dump according to first and secondary level dewatering devices is provided with water outlet and connected with sewage processing device which is also connected with wastewater pool provided with water outlet. The dryer, boiler, and wastewater pool are respectively connected with waste heat recovery device. The waste heat recovery device comprises air pre-heater (18) having heat side inlet connected with dryer and outlet connected with hot side wastewater pool (16). The air inlet of water pool is connected with condensing heater (21) via air preheater. The condensing heater has refrigerant outlet set between cooling medium inlet by cooling medium pipe which is also connected with expansion valve (22), wastewater heat exchanger (19), and compressor (20). The mixer has material inlet and automatic distributor (10). An INDEPENDENT CLAIM is included for manufacture of urban waste derivative fuel by collecting of municipal garbage; placing in garbage dump; transmitting into primary separator; taking big block sundries in urban garbage and sending into primary crusher for crushing into 8-10 cm; introducing crushed garbage into winnower via belt, in which paper, plastic and other light constituents and heavy constituents are separated; recovering light constituents; transmitting heavy component to first metal separator by belt, in which portion of metal is sent into first level dewatering device through belt; transmitting remaining garbage into secondary crusher for crushing into 3-5 cm; transmitting crushed garbage into metal separator to separate metal; passing into secondary dewatering device to remove 5-20% water; transmitting garbage into mixer from automatic distributor; mixing and uniformly stirring in derived fuel forming machine with diameter of 10-20 mm and length of 10-50 mm; separating metal and recycling; sending garbage after formed derived fuel into dryer; sending end product with little refuse derived fuel into boiler; burning; introducing into boiler; heating so that heat generated is supplied to dryer and that formed utilizing derived screen residue of wastewater in fuel is reduced at 10-15%; sending dried garbage derived fuel into product yard; sending waste derived fuel into hot side inlet of air preheater; introducing landfill leachate into sewage treatment apparatus from dewatering machines via pipelines, in which sewage treatment device is anaerobic sewage treatment device; processing solid matter generated by sewage treatment device; transmitting processed filtrate to wastewater pool; flowing refrigerant through wastewater heat exchanger after passing through heat exchange pipe passage; continuously evaporating refrigerant in liquid by wastewater heat exchanger to exchange heat with wastewater directly contact outer surface of absorbing heat; flowing out refrigerant from wastewater heat exchanger via refrigerant exit; totally transforming refrigerant suction into steam by compressor; compressing refrigerant steam and flowing into condensing heater via cooling medium inlet of condensing heater; continuously condensing refrigerant steam while transmitting heat to condensing heater; introducing liquid product into gas-liquid separator for separation; taking wastewater out of hot-side outlet of air preheater; passing it into wastewater pool; heating wastewater; and reducing its temperature to recover heat, in which these air containing moisture is trapped in wastewater pool.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of production device.    Garbage dump (1)    Primary separator (2)    First crusher (3)    Winnowing machine (4)    First metal separator (5)    First dewatering machine (6)    Secondary crusher (7)    Second metal separator (8)    Second dewatering machine (9)    Automatic distributor (10)    Mixer (11)    Derived fuel forming machine (12)    Dyer (13)    Product yard (14)    Sewage processing device (15)    Wastewater pool (16)    Boiler (17)    Air pre-heater (18)    Wastewater heat exchanger (19)    Compressor (20)    Condensing heater (21)    Expansion valve (22)    Waste heat recovery device (23)