Special mortar slurry stirring device for building construction

The utility model discloses a special mortar slurry stirring device for building construction, which comprises a stirring box body, the top of the stirring box body is fixedly connected with a connecting box, the top of the connecting box is fixedly connected with a mixed stuffing box, and one side of the mixed stuffing box is fixedly connected with a conversion box. A rotor wing single-flow-beam water meter is fixedly installed on the top of the conversion box, a water injection pipe is fixedly connected to one side of the conversion box, and a box cover is connected to the mixed stuffing box in a clamped mode. Through the arrangement of the mixed stuffing box, the spring rotating shaft, the movable rotating plate and the clamping plate, the device can automatically change the water injection amount according to different amounts of added slurry and automatically stop water injection when slurry adding is stopped, so that the injection amount proportion of the slurry and water is not changed, the water injec