The invention relates to the technical field of building machinery and in particular relates to a pearlite stirring device. The pearlite stirring device comprises a rack, a driving mechanism and a stirring mechanism, wherein the driving mechanism comprises a crankshaft, a water tank and a rotary blade; the crankshaft is mounted on the rack and is driven through a motor; the water tank is connectedwith a main water pipe; the main water pipe is connected with a pressure pump; the main water pipe is provided with a first water outlet and a second water outlet; the main water pipe is further internally connected with a sliding block in a sliding manner; the sliding block is fixedly connected with a push rod; one end, far away from the sliding block, of the push rod is connected onto a shaft neck of the crankshaft; the stirring mechanism comprises a stirring tank and a water storage tank; the rotary blade is mounted in the water storage tank; a screw rod is arranged in the stirring tank; the screw rod is hinged to a stirring paddle group; the stirring paddle group comprises a plurality of stirring paddles along the screw rod from top to bottom; a pulling rod and a bevel gear group areconnected between the screw rod and a rotary shaft of the rotary blade; a water spraying pipe is mounted in the water storage tank; a water inlet hole is formed in the water storage tank and the waterspraying pipe is connected with the water inlet hole. By adopting the device provided by the invention, the problem that stirring is insufficient in a pearlite stirring process is solved.