Kill it, or you can't cross the bridge behind, and the boss will clear it up.

How to enter the entrance of the fire copy of World of Warcraft:

The entrance to the Fire Place in World of Warcraft is the Saffron Castle in Mount Haigar, Kalimdor.

The specific location is shown in the following figure:

The land of fire is a replica map of World of Warcraft. The Land of Flames is a molten fire cast by Titan to imprison Ragnaros and his lawless minions. With the reappearance of Death Wings in Azeroth, Ragnaros and his minions swarmed out, but were finally repelled by the heroic guardians of the Holy Mountain. Now, ragnar Ross is gathering his followers, ready to resist the heroes of Azeroth attacking the land of fire.