The present invention relates to an ashtray box comprising an outer cylinder body (10) having an arcuate outer surface and an inner cylinder (20) accommodated in the outer cylinder body (10) An air insulating layer 30 is provided between the inner tubular bodies 20 and a seating surface 11 is provided on the upper surface of the outer tubular body 10. The inner tubular body 20 is provided with a seat A first screw coupling part 21 protruded to be positioned on the side of the surface 11； An accommodating sealing portion (22) formed at an upper end of the inner cylinder (20)； A locking protrusion (23) extending from the receptacle (22)； A first sealing lid 40 having a guide surface 24 inclined at an upper end inside of the inner cylinder 20 and covering an upper portion of the inner cylinder 20, A first sealing part 41 which is guided along the guide surface 24 of the inner cylinder 20 and is located inside the upper end of the inner cylinder 20； An extension (42) extending from said first closure (41)； And a second sealing portion 43 extending to the lower side of the extension portion 42 to be received in the receiving sealing portion 22 and hooked to the engaging shoulder portion 23, And a second screw fastening portion 51 which is seated on the surface 11 and covers the first sealing lid 40 so as to be in close contact with the first screw fastening portion 21 of the inner cylinder 20, And the second screw fastening part 51 is screwed to the first screw fastening part 21 so as to strongly press the first sealing lid 40 toward the inner cylinder 20, A second sealing lid 50 for allowing the sealing portion 41, the guide surface 24, the second sealing portion 43, and the accommodation sealing portion 22 to be strongly adhered to each other； A third sealing lid 60 seated on the seating surface 11 of the outer cylinder 10 and covering and protecting the second sealing lid 50； The second sealing lid 50 is provided between the first sealing lid 40 and the second sealing
