The invention relates to the technical field of picnic tools, in particular to a fire barrel for picnics. The fire barrel aims at solving the technical problem that fires of an existing fire barrel for the picnics are inconvenient to adjust. In order to solve the technical problem, the fire barrel for the picnics is formed by welding a bottom support, a hollow frame and an adjustable top. The firebarrel is characterized in that a recessed groove is formed in the top of the bottom support, the hollow frame comprises multiple round frames, the tops and the bottoms of the edges of the round frames are welded and combined through vertical ribs, and the bottom of the vertical rib on the lowest portion is fixedly connected with the edge of the top of the bottom support. The adjustable top comprises a fire outlet disc, and fire outlets are formed in the fire outlet disc. When the fire behavior is adjusted to be maximal, a rotary disc rotates, the fire outlets and round fire outlet openings are adjusted to the same vertical line, at the moment, flames jump upwards at the maximal fire behavior, the rotary disc rotates, the longitudinal gaps between the fire outlets and the round fire outlet openings are reduced, and therefore fire control can be achieved.