Concrete stirring device for highway construction

The utility model discloses a concrete mixing device for highway construction, belongs to the technical field of highway construction, and particularly relates to a concrete mixing device for highway construction, which comprises a mixing equipment main body and a transmission cylinder, and a bolt conveying mechanism for conveying materials is arranged in the transmission cylinder. A feeding pipe is arranged on the outer side of the lower end of the conveying cylinder, and a sliding frame used for supporting the conveying cylinder is further arranged on the outer side of the lower end of the conveying cylinder. After the transmission cylinder is arranged on one side of the stirring equipment main body, the sliding frame is arranged on the outer side of the lower end of the stirring equipment main body, the limiting connecting rod is pressed to enable the gear shaft to be separated from the tooth groove in one side of the sliding frame to release limiting, and the sliding frame can be directly pushed to enable