Upright sleeving self-elevating derrick

The invention belongs to the technical field of petroleum energy exploitation equipment, and particularly relates to an upright sleeving self-elevating derrick. The upright sleeving self-elevating derrick comprises a first support, a second support is inserted into the first support in a sliding mode, two lifting devices are symmetrically arranged between the second support and the first support, a self-balancing crown block is arranged at the top of the second support, and the middle of the self-balancing crown block is movably connected with the top of the second support through a plug pin. When the roller is in contact with the movable rods, the top ends of the two movable rods adjacent to the second stand column can deflect downwards at the same time and are tightly attached to the two side faces of the second stand column in a mutually perpendicular mode, and therefore the second stand column is locked and fixed. The second support can be located in the center of the inner side of the first support under