The invention relates to a mast tool for dismounting a high-altitude mobile tower crane in a cooling tower. The mast tool comprises a tower crane dismounting mechanism which is detachably connected to a cooling tower construction steel frame and used for dismounting the tower crane mounted on an indirect cooling tower reinforcing ring, the indirect cooling tower reinforcing ring is connected to the cooling tower construction steel frame, and the cooling tower construction steel frame is formed by connecting a plurality of cross beams and a plurality of oblique beams. The tower crane dismounting mechanism comprises a plurality of hanging main arm rods hinged to the cross beams, a plurality of supporting auxiliary arm rods hinged to the oblique beams and an installation support connected to one ends of the hanging main arm rods. The mast tool for dismounting the high-altitude mobile tower crane in the cooling tower is simple in structure, convenient to manufacture and install on site, good in stability, clear in stress, convenient and flexible to operate, high in safety and reliability, and capable of accelerating the construction progress and saving the construction cost; and when construction is inconvenient by using ultrahigh-altitude large construction machinery, constructors can efficiently complete the dismounting task by using limited tools, and the dismounting can be realized by relying on the excellent performance of manpower.

本发明涉及一种冷塔内高空移动式塔机拆除用桅杆工具，包括可拆卸式连接在冷塔构建钢架上的塔机拆除机构，用于拆卸间冷塔加强环上安装的塔机，间冷塔加强环连接在冷塔构建钢架上，冷塔构建钢架由若干个横梁和若干个斜梁连接构成；所述塔机拆除机构包括铰接在横梁上的若干个悬挂主臂杆、铰接在斜梁上的若干个支撑副臂杆、连接在悬挂主臂杆一端的安装支架。该冷塔内高空移动式塔机拆除用桅杆工具，结构简单，便于现场制作安装、稳定性好、受力明确、操作方便灵活、安全可靠性高，可加快施工进度、节约施工成本，在超高空、大型施工机械施工不便时，施工人员利用有限工具高效完成拆卸任务且自身可以依靠人力拆除的优越性能。