Hydraulic supporting leg mechanism for special vehicle

The utility model relates to the technical field of special vehicles, in particular to a hydraulic supporting leg mechanism for a special vehicle. The hydraulic supporting leg mechanism is installed at the bottom of the special vehicle. The hydraulic supporting leg mechanism for the special vehicle structurally comprises supporting legs and horizontal stretchy devices driving the supporting legs to move horizontally. By arranging rotation devices driving the supporting legs to rotate around vertical shafts between the horizontal stretchy devices and the supporting legs, the horizontal stretchy devices drive rotation devices and the supporting legs to move horizontally at the same time. When the special vehicle works in narrow space, if the horizontal stretchy devices can not be stretched, the rotation devices can be used for driving the supporting legs to rotate by a certain angle and then the supporting legs perform supporting. The hydraulic supporting leg mechanism for the special vehicle solves the technic