A rolling-type crushing conveyer is provided. The rolling-type crushing conveyer is convenient in usage, has good crushing effect and high production efficiency, and can protect a conveyer belt effectively. The conveyer comprises a conveyer device and a crushing device, and the crushing device is disposed on a discharge end of the conveyer device. The conveyer device comprises a conveyer holder, a conveyer belt, a charging guide plate and a pair of baffle plates, and the crushing device comprises an upper pressure roller, a lower pressure roller, an outlet pipe, a pair of fixed plates and a pair of height-adjusting devices. Each height-adjusting device comprises a fixed base, a lower supporting base, an upper supporting base, a screw and a hand wheel, wherein the groove-shaped fixed base is fixed on each fixed plate, and the groove is downward. The lower supporting base is disposed on each fixed plate and is positioned in the groove of the fixed base, and a screw hole matched the screw is disposed on the fixed base. The conveyer can improve the work efficiency, can protect the conveyer belt, and can match different thicknesses with different rolling gaps.