Crude copper continuous refining method and device

A crude copper continuous refining device comprises a furnace body, a feeding port, a copper discharging port and a slag discharging port, a partition wall is arranged in the furnace body and divides the interior of the furnace body into an oxidation zone and a reduction zone which are communicated with each other, the feeding port is formed in the end, away from the partition wall, of the oxidation zone, and the slag discharging port is formed in the side wall of the oxidation zone. A copper discharging opening is formed in the end, away from the partition wall, of the reduction area, a plurality of first spray guns are arranged on the side wall of the oxidation area, a plurality of second spray guns are arranged on the side wall of the reduction area, and the second spray guns are lower than the first spray guns; a gap is formed between the partition wall and the top of the furnace body, the partition wall is provided with a plurality of through holes, the through holes comprise a first hole opening and a s