Vertical diversion dry anaerobic fermentation device and method for organic solid waste

The invention provides a vertical flow guide dry anaerobic fermentation device for organic solid waste. The vertical flow guide dry anaerobic fermentation device comprises a stabilizing unit, the sleeving unit used for triggering sealing is arranged at the top of the stabilizing unit; the triggering unit is used for monitoring leaked acetylene gas and is arranged in the middle of the sleeving unit; and the pretreatment unit used for treating leakage is arranged at the bottom of the trigger unit. Leaked acetylene gas reacts with a silver nitrate solution in a trigger cavity to generate a large amount of precipitates, the precipitates generated by the reaction are accumulated on the surface of a trigger filter plate, a tilting rod at the bottom of the trigger filter plate is driven to swing, a trigger column at a groove of a hook plate slides out, the limitation of a limiting column is relieved, and the limiting column and a middle rod slide down; and the contraction cover slides down to the top of the steel cy