The utility model provides a forced circulation cooling water route presss from both sides shell type agitator tank body, belongs to coal industry coal gasification field, and it is poor to solve the prior art cooling effect, and the agitator tank body is the technical problem of super temperature damage easily. The utility model discloses a lower part jar is internal to be set up the lower part and presss from both sides the cover, and the clearance that the lower part pressed from both sides cover and the lower part jar body is dwindled by supreme down gradually, and the lower part presss from both sides the circular roof of upper end welding of cover, the centre bore of circular roof with lead to aquatic core barrel welding, it has the round hole to open on the circular roof, the lower part presss from both sides cover top side division has half long circular hole, jar internal interval in upper portion sets up a plurality of upper portions and presss from both sides the cover, and the clearance that the upper portion jar body and upper portion pressed from both sides the cover is passed through the upper portion gusset and is supported, and upper portion presss from both sides the circular roof of upper end welding of cover, the centre bore of circular roof with lead to aquatic core barrel welding, it has the round hole to open on the circular roof, upper portion presss from both sides cover top side opens and has half long circular hole. The utility model is used for during the gasifier seals high temperature environment, has simple structure, the effectual advantage of circulating water cooling.