The utility model discloses a compound roll crusher of hydraulic pressure, including setting up fixed home roll and two the at least movable rollers in the breaker main part, the breaker main part isleft above fixed home roll has the pan feeding mouth, the activity roller sets up in the installation of underspin side top -down along fixed home roll direction of rotation, activity roller the placeahead is provided with the stock guide, fixed home roll passes through fixed bearing base to be fixed in the breaker main part to be connected with home roll drive arrangement, the activity roller isconnected with movable roller drive arrangement. The utility model discloses the effect is obvious, and convenient and practical through fixed home roll and a plurality of movable roller rational arrangement of, realizes multistagely, and the combined crushing operation can greatly improve breaking's efficiency, while simple structure, post -maintenance is convenient, the sexual valence relativealtitude, and easy operation, crushing ratio is big, long service life.