Disclosed are a spatter scattering prevention device capable of facilitating maintenance without the need for removing scattered spatter, and a flash butt welding machine having the spatter scattering prevention device. The spatter scattering prevention device 1 according to the present invention is configured to form a water film for preventing spatter generated during welding from scattering to the surroundings in the air near the welding position. it is characterized by Further, it is characterized in that the water film is formed on one side on the side of the welding position and on the other side opposite to the one side on the side of the welding position.
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