Bottom lifting pushing mechanism for hydraulic support base

The utility model relates to the technical field of hydraulic supports, in particular to a bottom lifting pushing mechanism for a hydraulic support base. The base lifting device comprises a bottom lifting part used for lifting a base, a push rod used for supporting the bottom lifting part when the bottom lifting part lifts the base, and a pull rod used for driving the push rod to move along with the base. The bottom lifting part comprises a bottom lifting support enabling the bottom lifting part to be arranged on a mounting plate on the base, and a jack capable of stretching out to abut against the upper end face of the push rod so as to lift the base. And the other end of the pull rod is hinged with the tail end of the push rod. By arranging the bottom lifting support and the jack, the base can be lifted away from the ground to avoid the bottom pricking phenomenon of the base, the push rod and the pull rod can always move along with movement of the base by arranging the pull rod to be hinged to the push rod,