Cement fineness screening device for engineering detection

The utility model relates to the technical field of engineering detection, in particular to a cement fineness screening device for engineering detection, which comprises a mounting frame, a material guide barrel, a movable pipe and a screening groove, the material guide barrel is vertically mounted on the mounting frame, a stirrer is mounted in the material guide barrel, a feeding pipe is arranged on the upper side of a barrel body, and the movable pipe is slidably mounted on the lower opening side of the material guide barrel. A movable pipe is arranged on the mounting rack, connecting seats are arranged on the two sides of the movable pipe, two groups of lifting cross rods are rotatably arranged in the connecting seats, the lifting cross rods are arranged on the mounting rack through lifting assemblies, rotating assemblies are arranged on the lifting cross rods, and the screening tank is arranged at the position, close to an opening, of the lower side of the movable pipe. The cement screening efficiency of