NOVELTY - A public engineering island comprises gasifying system, evaporating generating system, space division system, solid and waste processing system and sewage processing system. The gasifying system is used for providing pure carbon monoxide and hydrogen which are obtained by separating part of composite gas prepared by gasifying the raw material through gasifying agent in gasifying furnace, and non-separated composite gas as fuel gas to corresponding user. The evaporating generating system is used for utilizing part of steam from boiler to generate power.    USE - Public engineering island for providing hot electricity.    ADVANTAGE - The public engineering island integrally gradually processes and utilizes three wastes having different resources and properties, thus cleaning production and efficient integral utilization of industrial park can be achieved. The engineering island attracts corresponding product or like enterprises at upstream and downstream to collect and reduce production cost.    DETAILED DESCRIPTION - Public engineering island comprises gasifying system, evaporating generating system, space division system, solid and waste processing system and sewage processing system. The gasifying system is used for providing pure carbon monoxide and hydrogen which are obtained by separating part of composite gas prepared by gasifying the raw material through gasifying agent in gasifying furnace, and non-separated composite gas as fuel gas to corresponding user. The evaporating generating system is used for utilizing part of steam from boiler to generate power, passing rest steams having different levels through distributing station, and providing to user through pipe net. The air system is used for processing air to generate compressed air, pure oxygen, pure nitrogen and inertia gas through air compressing system, directly providing gas to user via pipe net, and storing excess gas into tank to sell. The solid and waste processing system is used for integrally transforming blast and solid waste from the gasifying furnace and boiler to solid waste and building material processing system to process, and transforming all wastewater and condensing water from public island to wastewater processing system to process and recovery.