Concrete maintenance device for building construction

The invention discloses a concrete maintenance device for building construction, and relates to the technical field of concrete maintenance equipment. The concrete maintenance device for building construction comprises a frame mechanism, the frame mechanism comprises a first frame plate, the front surface of the first frame plate is fixedly connected with a plate column, a spraying mechanism is arranged in front of the plate column, the spraying mechanism comprises a sleeve column, and the sleeve column is movably connected to the outer side of the plate column in a sleeving mode through a bearing and matched with the plate column; connecting plates are evenly and fixedly connected to the periphery of the front end of the sleeve column at equal intervals, a main box is arranged in front of the sleeve column, the interior of the main box is hollow and annular, the rear surface of the main box is correspondingly and fixedly connected with the front surfaces of the ends, away from the sleeve column, of the conne