The utility model relates to a stoste filter, it includes the casing, is located metal video disc combination in the middle of the casing, install in the apron on casing top, stoste filter still including install in the heat preservation of casing surface is pressed from both sides the cover and is located a pair of stoste mixing arrangement of metal video disc combination both sides, the casing with the apron adopts threaded connection's mode together fixed, metal video disc combination with the apron adopts threaded connection's mode together fixed, stoste mixing arrangement mixes stoste, prevent that stoste is at the stoste filter dead material of edge's formation and in the inside mixed inhomogeneous problem of stoste that appears of stoste filter, the casing outside is provided with to keep warm to press from both sides to overlap and keeps warm to stoste simultaneously, the homogeneity of stoste has been improved, the combination of metal video disc adopts threaded connection's mode to be fixed in on the apron, the apron adopts threaded connection's mode together fixed with the casing, when the combination of metal video disc needs to be changed or repairs, dismounting is convenient.