Sand-gravel conveying device

The utility model relates to the technical field of gravel conveying, in particular to a gravel conveying device which comprises a conveying support and a rotating wheel rotationally installed on the conveying support, a conveying belt is arranged on the rotating wheel, the gravel conveying device further comprises a driving motor and a plurality of rotating wheels rotationally installed above the conveying belt, and an output shaft of the driving motor is coaxially connected with a steel rope wheel. A steel cable is wound on the steel cable wheel and penetrates through the upper portion of the rotating wheel to be fixedly connected with a feeding tipping bucket, the end, away from the steel cable, of the feeding tipping bucket is hinged to the side end of the conveying support, a supporting base is arranged below the feeding tipping bucket, a plurality of air cylinders are arranged on the supporting base, and the free ends of piston rods of the air cylinders are hinged to the feeding tipping bucket. Accordin