Filtration stirring reactor

The invention relates to a filtration stirring reactor, which is applied to a high-temperature continuous liquid reaction and realizes direct and complete separation of a reaction product from a solid catalyst in a reactor discharge process. A multi-paddle stirrer is fixed at the middle position of the top of a reactor barrel; the bottom of the reactor barrel is provided with a feeding hole; the feeding hole is connected with a cutoff valve; a filter fixing element is fixed on the inner wall of the reactor barrel; flanges are uniformly fixed on the top of the reactor barrel along the circumferences of the peripheries of stirring blades; the number of flanges is between 15 and 30; a barrel filter is fixed through each flange, is arranged in the reactor barrel and is fixed through the filter fixing element; and a pressure control valve is fixed on the top of the reactor barrel. The filtration stirring reactor has the advantage that: the problems of complex separation process of a catalyst outside the reactor in