The utility model discloses a fludioxonil technical purification device. The device comprises a frame body, a strut is arranged on the rear side of the upper end of the frame; connecting columns are arranged on the front side faces of the upper ends of supporting rods. an extraction device is arranged on the front side of the connecting column; a feeding hopper is arranged at a feeding hole in theupper end of an extraction funnel in the extraction device; a connecting block is arranged on the middle front side of the strut; a filtering device is arranged on the front side of the connecting block; an evaporation pushing device is arranged in a mounting hole in the upper end of the frame body; the fludioxonil active compound purification device is provided; simple structure, convenient use,purification purity is high, great convenience is brought to the use of a user; moreover, the device can be used as required, efficient and rapid separation is achieved through the extraction device,multi-layer separation of waste residues is achieved through the filtering device, efficient evaporation precipitation and pushing of raw pesticide are achieved through the evaporation pushing device, the workload of personnel is reduced, the production quality of the fludioxonil raw pesticide is guaranteed, the enterprise expenditure cost is reduced, and the purification efficiency of the fludioxonil raw pesticide is improved.