Emergency quitting device for underwater mining system

The invention discloses an emergency quitting device for an underwater mining system. The emergency quitting device mainly comprises a right-angled two-way connector with an elastic connector, a spherical safety buoyancy compartment, light-emitting and wireless electric devices and a small-sized floating ball compartment 4. When an emergency situation occurs, the underwater mining system is quickly separated from a water-surface supporting work mother ship, the spherical safety buoyancy compartment is quickly connected with the underwater mining system through the right-angled two-way connector; the spherical safety buoyancy compartment provides buoyancy for the underwater mining system after the underwater mining system is separated from the water-surface work mother ship, and is in a floating state together with the underwater mining system; the light-emitting and wireless electric devices emit light and positioning signals. The emergency quitting device disclosed by the invention not only can protect the underwater mining system and the water-surface supporting work mother ship in the emergency condition, but also can track and position the underwater mining system, so that equipment is convenient to recycle.