Garage type underwater relay station for deep sea mining

The invention relates to the technical field of underwater relay stations, in particular to a garage type underwater relay station for deep sea mining. The garage type underwater relay station is characterized in that an umbilical cable winch and a lifting rope winch are fixed on a supporting cabin, a mining vehicle is lifted below the umbilical cable winch through an umbilical cable in the umbilical cable winch, and a underwater monitoring robot is hoisted on one side of a mining vehicle through a hoisting rope in the hoisting rope winch; a material pumping device comprises a stock bin pump and a hose winch, the stock bin pump and the hose winch are fixed to the supporting cabin, a hose is wound around the hose winch, a pipe opening in one end of the hose communicates with a feeding opening of the stock bin pump through a feeding pipe, a pipe opening in the other end of the hose communicates with an ore outlet of the mining vehicle, and a discharging opening of the stock bin pump communicates with a stock bi