Sulfur purifying device

The utility model relates to a sulfur purifying device which comprises a feeding device, a sulfur melting kettle and a granulating and packaging device, wherein the feeding device comprises a mixing tank, a mixing pump and a slurry filter; the slurry filter is arranged at an inlet of the mixing tank; an outlet of the mixing tank is connected with the sulfur melting kettle through a sulfur melting kettle sulfur slurry inlet pipeline and the mixing pump arranged on the sulfur melting kettle sulfur slurry inlet pipeline; a steam flow adjustment valve is arranged on a steam heating pipeline of the sulfur melting kettle; a flow adjustment valve is arranged on an outlet liquid sulfur pipeline of the sulfur melting kettle; a temperature detection instrument is arranged at the bottom of the sulfur melting kettle; a double-flange boundary meter forming interlock control with the steam flow adjustment valve is arranged on the sulfur melting kettle; a sulfur melting kettle jacket steam condensation water pipeline is arr