Conveniently cleaned roller brush for constructional engineering

The utility model relates to the technical field of constructional engineering, and discloses a constructional engineering roller brush convenient to clean, which comprises a roller brush body, the outer side of the roller brush body is provided with a rotary cleaning mechanism, the rotary cleaning mechanism comprises a wrapping shell, and the upper surface of the wrapping shell is fixedly connected with a key controller. A driving motor is fixedly connected to the inner wall of the wrapping shell, a rotating rod is fixedly connected to the output end of the driving motor, a rotating cylinder is fixedly connected to the outer surface of the rotating rod, and a supporting rod is rotationally connected to the inner wall of the roller brush body. According to the constructional engineering roller brush convenient to clean, through mutual cooperation of the roller brush body, the wrapping shell, the key controller, the driving motor, the rotating rod, the rotating cylinder, a first connecting rod, a second connec