NOVELTY - A trash comprehensive treatment involves fermenting a putrescible part of animal excrement and plant residue at low temperature to produce the biogas in anaerobic fermentation state; burning a flammable part of the household garbage at combustion facility where the dregs and an inorganic part produced after burning is sent to landfill site and the flying ash discharged after burning is solidified as cement; and sending the smoke and gas produced by burning to a second combustion chamber to burn with the combustion-supporting function of the biogas at high temperature.    USE - As trash comprehensive treatment for towns and villages.    ADVANTAGE - The comprehensive treatment reduces the flammable part of the household garbage and increases the burning temperature of biogas, thus avoiding the re-pollution of the burnt smoke and gas; keeps the biogas fermentation pond at 35-55 degrees C, thus increasing the efficiency of the biogas fermentation and output.    DETAILED DESCRIPTION - A trash comprehensive treatment involves collecting the household garbage, animal excrement, and plant residue by sort; separating the daily living garbage in town and city to putrescible part, flammable part, recoverable part, and inorganic part; fermenting the putrescible part of animal excrement and plant residue at 35-55 degrees C to produce the biogas in anaerobic fermentation state; burning the flammable part of the household garbage at combustion facility where the dregs and inorganic part produced after burning is sent to landfill site and the flying ash discharged after burning is solidified as cement; sending the smoke and gas produced by burning to a second combustion chamber to burn with the combustion-supporting function of the biogas at above 850 degrees C; and cooling the smoke and gas discharged to 180 degrees c and then sending it to smoke and gas purification system to discharge after it reaches the stander; The high temperature steam produced by first heat interchanger is discharged into a second heat interchanger to produce middle temperature of water at 30-60? and then sending it to into the pipe coil winded out of the biogas fermentation pond to increase the fermentation temperature. The animal excrement and putrescible garbage is added into to the biogas fermentation pond everyday. The plant residue is added into the biogas fermentation pond one time after 5-10 days. The combustion-supporting biogas of the second combustion chamber is sent by the blower.    DESCRIPTION OF DRAWING(S) - The drawing is a block diagram showing a trash comprehensive treatment.