The invention relates to a melting device, in particular to a melting device for uniformly heating petroleum asphalt. For solving the technical problem, the invention provides the melting device for uniformly heating the petroleum asphalt, which can be used for uniformly heating the petroleum asphalt and is environment-friendly. The melting device for uniformly heating the petroleum asphalt comprises a base and the like, wherein a melting mechanism is arranged on the base; first supporting rods are symmetrically connected to the left side and the right side of the top of the base; a smoking mechanism is arranged at the top of each first supporting rod. The invention designs the melting device for uniformly heating the petroleum asphalt; by arranging the melting mechanism, the petroleum asphalt is favorably and uniformly heated in the melting process; by arranging the smoking mechanisms, the condition that waste gases generated in the process of melting the petroleum asphalt directly enter the atmosphere is favorably prevented, so that the pollution to the atmosphere is reduced.