A bulk material cargo container liner system comprises an inflatable bulk material cargo container liner which has at least one vacuum discharge tube member disposed internally within the bulk material cargo container liner and extending throughout the longitudinal extent thereof for discharging bulk cargo material outwardly from the bulk material cargo container liner, and at least one inflatable air bag component which also extends throughout the longitudinal extent of the bulk material cargo container liner and is initially disposed in a deflated state but which is adapted to be disposed in an inflated state when the bulk cargo material can no longer be evacuated under natural gravitational forces. By inflating the at least one inflatable air bag component, the angle of repose of the bulk cargo material disposed internally within the bulk material cargo container liner is effectively altered in a positive manner so as to cause the bulk cargo material to again flow toward the at least one vacuum discharge tube member whereby the bulk cargo material can be evacuated from the bulk material cargo container liner without the need for tilting the bulk material cargo container and the liner contained therein.