Concrete stirring device for constructional engineering

The utility model relates to a concrete stirring device for constructional engineering, and solves the technical problems that a concrete stirring device in the prior art is non-uniform in concrete stirring and poor in stirring effect. The stirring device comprises a fixing frame, a feeding hopper, a motor and a rotary drum, a stirring barrel is arranged above the fixing frame, the upper end of the stirring barrel is open, and the lower end of the stirring barrel is provided with a discharging port; the feeding hopper is in an inverted cone shape, is arranged above the stirring barrel and is communicated with the stirring barrel; the motor is arranged above the stirring barrel, and the output end of the motor faces an inner cavity of the stirring barrel; the rotary drum is coaxially connected to the output end of the motor and located in the stirring barrel, the interior of the rotary drum is hollow, the bottom end of the rotary drum communicates with an inner cavity of the stirring barrel, a stirring mechani