Multifunctional safety helmet

The present invention relates to a multifunctional safety helmet. To this end, the multifunctional safety helmet comprises an outer cap and an inner cap inserted into the outer cap, wherein the inner cap includes: a first air passage formed forward and rearward across the upper surface thereof; a cooling fan mounted on the center of the first air passage to blow heat, dissipated from a head, upward in order to transfer the heat toward the first air passage; and an air circulation vent formed on the front side of the first air passage to guide some air toward the forehead. 本发明涉及种多功能安全帽。为此，所述多功能安全帽包括外罩和插入所述外罩中的内罩，其中所述内罩包括：形成为向前和向后通过其上表面的第空气通路；安装于所述第空气通路的中心上以向上吹散头部所散发的热量的冷却风扇，以将所述热量朝向所述第空气通路传送；和形成于所述第空气通路的前侧上的空气循环通风口以将些空气朝向所述前额引导。