To provide a convertor operating device and a method of operating the convertor by using the same, having superior energy-saving effect, and properly suppressing manufacturing costs and an environmental accident after operating an emergency device.

This convertor operating device 10 includes at least one convertor 11-11''', at least one air distribution pipe 12a, 12b connected with the convertor 11-11''', at least one air supply section 13a, 13b distributing the air to the convertor 11-11''' through the air distribution pipe 12a, 12b, and a distributed air pressure adjustment valve 17 disposed right in front of the convertors 11-11''' of the air distribution pipe 12a, 12b and adjusting a flow rate of the air remaining in the air distribution pipe 12a, 12b to the convertors 11-11''' to prevent backflow of molten bath in the convertor 11-11''', when an operation of the air supply section 13a, 13b is stopped in emergency tilting of the convertor.