Integrated escape mechanical lock with reverse lifting function without being separated from inside and outside

The utility model provides an integrated escape mechanical lock with a reverse lifting function and capable of being opened inwards and outwards. The handle comprises a shell, a first square core, a second square core and a third square core are sequentially arranged in the shell from front to back, the outer handle is provided with a first rotating rod connected with the first square core, and the inner handle is provided with a second rotating rod connected with the second square core and the third square core. A poking piece is arranged at the end, away from the inclined tongue, of the pushrod, a push plate used for driving the main square tongue to pop up is arranged below the poking piece, and the push plate comprises a first rotating piece and a second rotating piece which are connected in a rotating mode. Known from the technical scheme, according to the utility model, a plurality of lock tongues can be locked at the same time, and the three square cores are arranged, so that the indoor space and the o