NOVELTY - A biomass waste resource pyrolysis and gasification comprehensive transformation and utilization system comprises pyrolysis device, gas supply device, multifunctional heat exchange device, residual heat supply device, and static separation device. The residual heat supply device comprises water buffer tank, pipeline pump, boiler and heat conductive pipe network which are orderly connected.    USE - Biomass waste resource pyrolysis and gasification comprehensive transformation and utilization system.    ADVANTAGE - The biomass waste resource pyrolysis and gasification comprehensive transformation and utilization system is simple to operate and can be utilized for continuous operation with low maintenance cost. It enables 100 % utilization of biomass waste resource, and does not generate secondary pollution to the environment. It can provide a centralized combustible gas supply for utilization as, e.g. fuel, by the users; recover the heat generated in the process and utilize it for heating water so as to provide hot water supply to the users; and generate useful by-products such as acetic acid which can be utilized as biological foliar fertilizer or biological insecticide or disinfectant, and tar which can be utilized as industrial raw material.    DETAILED DESCRIPTION - A biomass waste resource pyrolysis and gasification comprehensive transformation and utilization system comprises pyrolysis device, gas supply device, multifunctional heat exchange device, residual heat supply device, and static separation device. The residual heat supply device comprises water buffer tank, pipeline pump, boiler and heat conductive pipe network which are orderly connected. The multifunctional heat exchange device includes a heat insulation layer provided on the outer surface, a gas channel, a gas channel inlet, a gas channel outlet, a cooling water channel, a cooling water channel inlet, a cooling water channel outlet, and a condensed liquid outlet disposed at the bottom and connected to the gas channel and static separation device. The gas channel inlet of the multifunctional heat exchange device is connected to a gas output pipe of a gas separation device which is in turn connected to the pyrolysis device. The gas channel outlet of the multifunctional heat exchange device is connected to the gas supply device via an air guide device. The cooling water channel inlet of the multifunctional heat exchange device is connected to the water buffer tank and heat conductive pipe network via connecting pipelines provided with control valves (23, 24). The cooling water channel outlet of the multifunctional heat exchange device is connected to the inlet of the water buffer tank via a pipeline. The static separation device comprises static separation chamber provided with heavy oil outlet, acetic acid outlet, and light oil outlet. An INDEPENDENT CLAIM is included for operation of the biomass waste resource pyrolysis and gasification comprehensive transformation and utilization system, comprising (a) feeding the biomass raw material into the pyrolysis device; generating negative pressure inside the pyrolysis device and multifunctional heat exchange device using the air guide device so as to draw air to be utilized as gasifying agent into the pyrolysis device; carrying out high-temperature pyrolysis on the biomass raw material to generate pyrolysis product including mixed gas (A) comprising combustible gas, oil, acetic acid and steam; (b) generating negative pressure in the multifunctional heat exchange device using the air guide device to enable the mixed gas (A) to enter into the gas channel of the multifunctional heat exchange device; introducing a cooling water into the cooling water channel of the multifunctional heat exchange device to enable heat transfer between the mixed gas (A) and the cooling water so as to cool down the mixed gas (A) and condense the oil, acetic acid and steam components into mixed liquid (B) comprising tar and acetic acid; (c) introducing the combustible gas into the gas supply device via the air guide device to provide a centralized gas supply to the gas users and the boiler of the residual heat supply device; introducing the mixed liquid (B) from the condensed liquid outlet of the multifunctional heat exchange device into the static separation device to separate the components into heavy oil, light oil and acetic acid solution which are then collected via heavy oil outlet, light oil outlet, and acetic acid outlet provided in the static separation device; introducing the obtained hot water from the cooling water channel outlet of the multifunctional heat exchange device into the water buffer tank; introducing the hot water into the boiler via the pipeline pump; introducing the condensed water from the boiler into the heat conductive pipe network to enable heat exchange with water so as to provide hot water supply to the users; and introducing the condensed water from the heat conductive pipe network into the multifunctional heat exchange device to utilize it as cooling water in the exchange device so as to perform the next cycle of heat utilization.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram illustrating the biomass waste resource pyrolysis and gasification comprehensive transformation and utilization system.    Pyrolysis device (1)    Gas supply device (2)    Multifunctional heat exchange device (3)    Gas channel inlet (6)    Gas channel outlet (7)    Cooling water channel inlet (8)    Cooling water channel outlet (9)    Air guide device (11)    Water buffer tank (12)    Static separation device (13)    Pipeline pump (14)    Boiler (15)    Heat conductive pipe network (16)    Control valves (23, 24)