Novel safety helmet

The utility model relates to a novel safety helmet which comprises a helmet body and a chin strap connected to the helmet body, and the helmet body comprises an outer shell, an inner shell embedded in the outer shell and a buffer cushion detachably arranged on the inner shell; an interlayer is formed between the outer shell and the inner shell, and a water-absorbing flame-retardant material is arranged in the interlayer; the shell is provided with a plurality of heat dissipation holes communicated with the interior of the interlayer. A mounting opening is formed in the inner shell; the device further comprises a semiconductor chilling plate, a temperature sensor, a rechargeable battery and a controller. The semiconductor chilling plate is mounted in a mounting opening in the inner shell; the temperature sensor is arranged on the cushion pad, and the temperature sensor is in contact with the semiconductor chilling plate; the controller comprises a shell arranged on the inner shell, a key module and a charging