Fuente: WIPO "circular economy" The invention relates to a method for producing a light multipurpose material from solid wastes, and an adopted device. By designing a hydration reaction mix proportion of various industrial solid wastes and building solid wastes, the light multipurpose material is obtained without or with little industrial cementing materials (such as lime, cement and the like) in production, has good economic performance and energy-saving and environment-friendly properties, effectively promotes resource recycling, can be widely applied to the fields of buildings, environmental protection and agriculture, isstable in physical and chemical properties and free of pollution to the nature, and has a density of 300 kg/m to 1500 kg/m and the compressive strength of 2.5 Mpa to 25 Mpa.3>3>