What you have is some good WV bituminous coal. The size is good and by the "free-burning" look of things the coal is decent. Two problems: 1. The stove is not a great bituminous stove, but will probably burn it just fine. 2. this is most important, with that much smoke coming out of the stove into the house you have a serious draft/flow issue that irrelevent to the type (anthracite or bituminous) coal that you are burning, if it were anthracite, you would simply be getting invisible CO in the house every time you load it instead of visible smoke.
Your chimney is either too short, too small, or obstructed. if you have ANY type of chimney cap, especially with mesh in it REMOVE IT. if you have a chimney that is low or lower than the highest point of your home, extend it. if your stove has less than an 8" diameter connecting pipe between the stove and the flue, use an 8" pipe all the way to the chimney and reduce it to the size of the flue exit of the stove with a reducer immediately after the stove - this will increase maximum flow capacity to help prevent smoke and CO escaping during reloading, but it will not fix the problem if the issue is a small (6" or less) flue or a flue that is too short or a flue with any kind of cap on it. If you have any more questions feel free to ask, but it will help us make reccomendations if you have detailed pics of the connecting pipe, the chimney diameter and the chimney outside of the home.
Also, you don't want an extremely hot coalbed before you refuel with bituminous coal, in a stove like that designed for anthracite, it will simply cause the coal to release it's volitiles far to quickly while you're reloading it.