A mobile device for discharging a liquid-filled container is disclosed. The device has a closable compartment provided with a closable opening, and an unloading installation in the inner space of the device, coupleable with the container. The unloading installation is able to extract liquid from the container via top unloading and to move it outside of the device, and includes an absorption means for removing liquid vapors which is connectable with the container for the extraction of top liquid vapors. A method for discharging liquid containers, such as unloading benzyl chloride liquid with the mobile device, is described.