Ready-mixed dry mixed mortar is made of binder, filler, industrial waste material (slag, slag, fly ash, etc.), admixture and other raw materials in accordance with scientific proportions, and plays the role of binding, padding, protection and stress transfer in construction projects. The production adopts automatic, clean and flexible process design, the silo adopts fully closed operation, and the dust control can reduce the external emission by more than 90%, and truly realize green production. The product has the advantages of stable quality, easy construction, the use of waste, conducive to environmental protection, etc., will not lead to hollow drum, cracking, leakage and other phenomena after use, can be mechanical Hu construction, machine spraying, thereby doubling the work efficiency, reduce construction costs, is a new type of waste environmental protection and energy saving building materials.