The invention relates to a fire grate with a multi-blade boss, which consists of an upper surface (1), a bottom (2), a left side (3), a right side (4), a front side (5), a rear side (6 ) to form a long strip, the bottom (2) is provided with a ventilation slot (11), the tail end of the bottom (2) is provided with a slot (8) for fixing the tail, and the front end of the upper surface (1) is provided with A boss (7), the outer surface of the boss (7) is surrounded by 5 to 10 slopes, the angle between each slope and the horizontal plane is not equal, and the slope and the slope intersect to form a knife edge; ) is provided with an air outlet (9) on the rear slope; the shape of the boss (7) is a polyhedron that is small on the top, large on the bottom, narrow at the front end, and wide at the rear end. The invention has the characteristics of novel concept, simple structure, easy implementation, etc. It can effectively stir, turn over, disperse and loosen garbage, shorten drying time and burn quickly.