An explosion-proof lighting device (10, 20), comprising: a device body (11, 21) for accommodating the explosion-proof lighting device, the device body comprising a mounting portion located in the middle portion thereof and a first heat dissipation portion and a second heat dissipation portion that extend from the bottom of the mounting portion to two sides, wherein a hollow cavity is formed inside the mounting portion; a plurality of light emitting diodes, LEDs, (15, 25) for emitting light to illuminate, the plurality of light emitting diodes being attached to the first heat dissipation portion and the second heat dissipation portion, respectively; an electrical drive module (12, 22) for powering the light emitting diodes, the electrical drive module being accommodated within the hollow cavity formed inside the mounting portion of the device body so as to be arranged in an offset arrangement with respect to the light emitting diodes attached to the first heat dissipation portion and the second heat dissipation portion; a seal cover detachably connected to the device body from the bottom thereof, the seal cover being designed to be connected to the device body in an ignition protective manner so as to be resistant to explosion pressure; characterized in that bumps for the light emitting diodes are provided on the first heat dissipation portion and the second heat dissipation portion respectively and protrude therefrom towards the seal cover, wherein the bumps, together with the first heat dissipation portion and the second heat dissipation portion, enclose and form hollow annular grooves disposed around the bumps. a device body (11, 21) for accommodating the explosion-proof lighting device, the device body comprising a mounting portion located in the middle portion thereof and a first heat dissipation portion and a second heat dissipation portion that extend from the bottom of the mounting portion to two sides, wherein a hollow cavity is formed inside the mounting portion; a plurality of light emitting diodes, LEDs, (15, 25) for emitting light to illuminate, the plurality of light emitting diodes being attached to the first heat dissipation portion and the second heat dissipation portion, respectively; an electrical drive module (12, 22) for powering the light emitting diodes, the electrical drive module being accommodated within the hollow cavity formed inside the mounting portion of the device body so as to be arranged in an offset arrangement with respect to the light emitting diodes attached to the first heat dissipation portion and the second heat dissipation portion; a seal cover detachably connected to the device body from the bottom thereof, the seal cover being designed to be connected to the device body in an ignition protective manner so as to be resistant to explosion pressure; characterized in that bumps for the light emitting diodes are provided on the first heat dissipation portion and the second heat dissipation portion respectively and protrude therefrom towards the seal cover, wherein the bumps, together with the first heat dissipation portion and the second heat dissipation portion, enclose and form hollow annular grooves disposed around the bumps.