The utility model discloses a connect sediment dolly, set up connect the slag chute body in between first frame and second frame including moving the automobile body, setting up first frame and second frame, slidable on moving the automobile body, correspond on first frame and the second frame and offered the sliding tray, be provided with slip pivot corresponding with the sliding tray and that match and use on connecing the slag chute body, and move and still be provided with and connect on the automobile body slag chute body to match the tip that uses to grab solid subassembly. The utility model discloses a connect sediment dolly, through setting up first frame and second car frame, and the slidable setting connects the slag chute body in between first frame and second frame, it has seted up a set of sliding tray to correspond on first frame and the second frame, it is provided with slip pivot corresponding in the sliding tray and that match and use on the terminal surface of the slag chute body left and right sides to connect, connect the slag chute body can slide forward between first frame and second frame after connecing the sediment to accomplish, the back is realized the rotation that connects the slag chute body through slip pivot and sliding tray and is emptyd, get rid of and meet the internal slag body who accepts of slag chute.