Front disassembling support for assembling and disassembling AGD (Agar Gel Diffusion) pipeline of reducing furnace

The utility model relates to maintenance of a reducing furnace, in particular to a maintaining device for an AGD (Agar Gel Diffusion) pipeline of the reducing furnace. The front disassembling support is arranged on a frame support on steel platforms on two sides of an installing position of the AGD pipeline of the reducing furnace; two parallel pin roller type heavy loading linear guide rails which lengthways pass through the whole support are arranged inside the upper layer of a frame type support main body; the front disassembling support comprises a level plate and a swinging section which are spanned on the linear guide rails, wherein one end of the level plate is integrally hinged with one end of the swinging section; a vertical oil cylinder is arranged on the level plate; and the swinging end is supported via the top end of the oil cylinder. The front disassembling support provided by the utility model can be matched with a propping device to lengthways and levelly move the AGD pipe along the linear guide rails, and the AGD pipe can stably, safely, accurately and reliably enter or get out of a shaft furnace without being damaged.