Building waste recycling method

The invention discloses a building waste recycling method. The method is characterized by including the following steps: removing iron waste through magnetic separation after the building waste is smashed; removing dirt and light substances through washing with water; screening so as to obtain fine waste particles with the particle size range of 0-5 mm and coarse waste particles with the particle size ranges of 5-8 mm, 8-12 mm and 12-25 mm; meanwhile, collecting dust generated during the waste smashing process to obtain dust waste particles with the particle size range of 0.3 mm or below; using the powder materials, fine materials and corresponding type of coarse materials as brick-making raw materials, adding cement and water according to the ratio requirement, and mixing and stirring to prepare cement bricks which use the building waste as main raw materials. According to the method provided by the invention, the building waste is recycled and used for making bricks, so that waste is changed into things of value and environment friendliness and energy conservation are realized; besides, the method has the advantages that the treatment efficiency is high, and the quality of the prepared bricks is good.