The invention provides a left wheel popup box type porous pull-down plug 
graphite water gap device of an electromagnetic 
slag smelter. The left wheel popup box type porous pull-down plug 
graphite water gap device of the electromagnetic 
slag smelter structurally comprises a moving arm, a plug shifting arm, a plug shifting air cylinder, a pin shaft, a 
fixed frame, a rotating shaft, a plug pushing air cylinder, a 
graphite water gap, a graphite plug and a porous cone. The left wheel popup box type porous pull-down plug graphite water gap device of the electromagnetic 
slag smelter has the advantages of achieving the effects that the blocking of high temperature slag in base flow of an 
electromagnetic induction slag smelter is relieved when the flow is open, and the flow is controlled at a constant temperature. Besides, the technological requirements of rock 
wool production are met, and a 
bottleneck is broken for the production of high quality rock 
wool. The designed bottom leakage deslagging water gap ensures flow accuracy, can be opened and closed at will, and does not waste melts. The 
energy consumption is low, 
thermal efficiency is high, the amount of waste residue is small, the 
fiber forming rate is high, and the cost 
advantage is obvious. The electromagnetic slag smelter is not only excellent in temperature rise and regulation performance, heat preservation performance and hardening and 
tempering performance, but also high in storage capacity, thereby laying a good foundation for scale production. The left wheel popup box type porous pull-down plug graphite water gap device has the advantages of being controllable in high temperature 
liquid state slag flow, smooth, free of blocking, safe, reliable, convenient to use and efficient.