The invention discloses welding piece cleaning drying and dedusting equipment. The welding piece cleaning drying and dedusting equipment structurally comprises a water supply pipeline, a cleaning box, high rotating speed brushes, a cleaning machine electric cabinet, a cleaning machine base, a drying machine base, a drying machine electric cabinet, a conveyor belt, a discharging port, a drying box, a three-way pipe, a hot air pipe, a bridging feeding box, a transmission shaft, a cleaning screen and a cleaning shaft. The drying machine base is fixedly arranged at the bottom of the drying machine electric cabinet, and the water supply pipeline is connected to the top end of the cleaning box in a penetrating mode. The welding piece cleaning drying and dedusting equipment has the beneficial effects that the high rotating speed brushes rotate through the transmission shaft and drive the cleaning screen on the cleaning shaft to rotate at a high speed, so that a welding piece can be cleaned without dead angles, and the situations that dust is left out, thus welding points are uneven, and the welding quality is affected accordingly are avoided.