Construction waste crushing device and steps for construction

The invention relates to the technical field of construction waste recycling, in particular to a construction waste crushing device for construction, which comprises a rack, a hydraulic mechanism is fixedly connected to the center of the top of the rack, a breaking mechanism is arranged at the output end of the hydraulic mechanism, and a storage mechanism and a crushing mechanism are respectively arranged on two sides of the hydraulic mechanism. The material storage mechanism and the smashing mechanism are both slidably connected with a top rail of the rack in a buckled mode and are movably limited through a limiting mechanism, the two ends of the rack are both slidably connected with bag expanding mechanisms in a buckled mode, the lower portion of the rack is fixedly connected with a control cabinet and a storage cabinet, and a controller is fixedly connected into the control cabinet. According to the home-entry type construction waste crushing device, the problems that according to a traditional constructio