The northern door does indeed open easily, setting the brazier's very briefly to stirring before Xyrhanna closes the door again. Oloben similarly checks the eastern doorway, finding it likewise unblocked.
Coyote crouches, and then eventually lays, down in front of the blocked door, and discovers the problem. It appears that a number of wedges have been shoved in place to block the door from opening. This simple blockage is simple enough to remove with the application of a slender collapsible rod from his thieves tools, pressed against the point of the wedge as the door is pulled on to give as much slack as possible. He is fairly certain the door will open now.
All in the room are able to see that the goblin was indeed armed and armored, though it's dagger and short-spear are attached to its equipment rather than laying in hand.