NOVELTY - System for poly-generation treatment of garbage biomass including gasification technique of garbage, biomass, and coal comprises feeder (6), gas phase circular gasification furnace (7), smoke circling wind pipe (8), smoke circling blower (9), waste heat boiler (12), exhaust gas suction fan (13), purifying tower (14), compressor (19), cooler (20), and wind chest (21b); where the feeder (6) comprises a hopper (4).    USE - The system is useful for poly-generation treatment of garbage biomass (claimed). The synthesized gas is useful for producing city coal gas, methanol, dimethyl ether, or hydrogen by post-treatment.    ADVANTAGE - Smoke in the gas phase circular gasification furnace returns to oxidizing region in the furnace by the smoke circling wind pipe and smoke circling blower, which carries out gas phase circular reaction to form synthesized gas with rich hydrogen, and efficiently decomposes dioxin.    DETAILED DESCRIPTION - System for poly-generation treatment of garbage biomass including gasification technique of garbage, biomass, and coal comprises feeder (6), gas phase circular gasification furnace (7), smoke circling wind pipe (8), smoke circling blower (9), waste heat boiler (12), exhaust gas suction fan (13), purifying tower (14), compressor (19), cooler (20), and wind chest (21b); where the feeder (6) comprises a hopper (4), discharge port of the feeder (6) is connected with feeding port of the gas phase circular gasification furnace (7), steam outlet of the gas phase circular gasification furnace (7) is connected with inlet scoop of the smoke circling blower (9) through smoke circling wind pipe (8), air outlet of the smoke circling blower (9) is connected with the oxidizing region of the gas phase circular gasification furnace (7), synthesized gas outlet of the gas phase circular gasification furnace (7) is connected with the waste heat boiler (12), the waste heat boiler (12) is connected with inlet scoop of the exhaust gas suction fan (13) by pipe, air outlet of the exhaust gas suction fan (13) is connected with the purifying tower (14), the purifying tower (14) is connected with the compressor (19), the compressor (19) is connected with the cooler (20), and the cooler (20) is connected with wind chest (21b). An INDEPENDENT CLAIM is included for a device for forming the system for poly-generation treatment of garbage biomass comprising smoke circular outlet (702) of the gas phase circular gasification furnace (7) connected to smoke circular inlet (710) of the oxidizing region (7-VI) in series through the smoke circling wind pipe (8) and smoke circling blower (9); the device comprises feeder (6), gas phase circular gasification furnace (7), smoke circling wind pipe (8), and smoke circling blower (9); the gas phase circular gasification furnace (7) has tunnel structure, and has steam mixing region (7-I), drying region (7-II), pyrogenation region (7-III), reducing region (7-VII), oxidizing region (7-VI), slag cooling region (7-IV), and wind box (7-V); the steam mixing region (7-I) is above the drying region (7-II), the drying region (7-II) is in the front of the furnace, the pyrogenation region (7-III) is adjacent to the drying region (7-II), the reducing region (7-VII) is adjacent to the pyrogenation region (7-III), the oxidizing region (7-VI) is adjacent to the reducing region (7-VII), the slag cooling region (7-IV) is adjacent to the oxidizing region (7-VI), and the wind box (7-V) is adjacent to the slag cooling region (7-IV); front head face of the gas phase circular gasification furnace (7) has feeding port (718), conveying port of the feeder (6) is connected with the feeding port (718), the feeder (6) has hopper (4), the smoke circular outlet (702) is equipped in upper part of the drying region (7-II) of the gas phase circular gasification furnace (7), the smoke circular inlet (710) is equipped in upper part of the oxidizing region (7-VI), air blasting port (711) is equipped in the wind box (7-V) of the gas phase circular gasification furnace (7), and the synthesized gas outlet (708) is equipped in joint of the pyrogenation region (7-III) and reducing region (7-VII).    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic diagram of the system for poly-generation treatment of garbage biomass.    Feeder (6)    Gas phase circular gasification furnace (7)    Smoke circling wind pipe (8)    Smoke circling blower (9)    Waste heat boiler (12)    Exhaust gas suction fan (13)    Purifying tower (14)