Pressurizing roasting furnace for preparing isostatic pressing graphite

The invention relates to the field of roasting furnaces, in particular to a pressurizing roasting furnace for preparing isostatic pressing graphite. Comprising a reaction cabin with a feeding port formed in the side wall; the reset mechanism comprises a positioning sleeve shell; the positioning sleeve shell is arranged at the upper end of the reaction cabin; the synchronous jacking assembly comprises a sliding top plate, two first air leakage mechanisms and two abutting mechanisms, the sliding top plate is in sliding connection with the inner wall of the reaction cabin, the two first air leakage mechanisms are arranged at the upper end of the sliding top plate, and the two abutting mechanisms are connected with the two first air leakage mechanisms correspondingly; the supporting separation blade is arranged at the upper end of the positioning sleeve shell; the air leakage assembly comprises a movable top cover, a rubber sealing cover and a plurality of second air leakage mechanisms, the movable top cover is a