A rigid box for smoking articles; the rigid box being parallelepiped-shaped and comprises: a first panel which defines a top wall; a second panel which is hinged to the first panel, is folded 90° with respect to the first panel and defines a first lateral wall; a third panel which is hinged to the second panel, is folded 90° with respect to the second panel, is parallel to and faces the first panel, and defines a bottom wall; a fourth panel which is hinged to the third panel, is folded 90° with respect to the third panel, is parallel to and faces the second panel, and defines a second lateral wall opposite the first lateral wall; a fifth panel which is hinged to the fourth panel, is folded 90° with respect to the fourth panel and rests on and is glued to an inner surface of the first panel; a sixth panel which is hinged to the fifth panel, is folded 90° with respect to the fifth panel, is parallel to the second panel and to the fourth panel and divides the inner volume of the rigid box in two adjacent chambers (10, 11); and a seventh panel which is hinged to the sixth panel, is folded 90° with respect to the sixth panel and rests on and is glued to an inner surface of the third panel; the rigid box being characterized in that: an eighth panel is provided, which is hinged to the first panel at an opposite side with respect to the second panel and constitutes a pivoting lid which in a closed position covers the first panel itself; and between the eighth panel and the first panel glue is interposed which allows to separate the eighth panel from the first panel at the opening of the rigid box. a first panel which defines a top wall; a second panel which is hinged to the first panel, is folded 90° with respect to the first panel and defines a first lateral wall; a third panel which is hinged to the second panel, is folded 90° with respect to the second panel, is parallel to and faces the first panel, and defines a bottom wall; a fourth panel which is hinged to the third panel, is folded 90° with respect to the third panel, is parallel to and faces the second panel, and defines a second lateral wall opposite the first lateral wall; a fifth panel which is hinged to the fourth panel, is folded 90° with respect to the fourth panel and rests on and is glued to an inner surface of the first panel; a sixth panel which is hinged to the fifth panel, is folded 90° with respect to the fifth panel, is parallel to the second panel and to the fourth panel and divides the inner volume of the rigid box in two adjacent chambers (10, 11); and a seventh panel which is hinged to the sixth panel, is folded 90° with respect to the sixth panel and rests on and is glued to an inner surface of the third panel; the rigid box being characterized in that: an eighth panel is provided, which is hinged to the first panel at an opposite side with respect to the second panel and constitutes a pivoting lid which in a closed position covers the first panel itself; and between the eighth panel and the first panel glue is interposed which allows to separate the eighth panel from the first panel at the opening of the rigid box. an eighth panel is provided, which is hinged to the first panel at an opposite side with respect to the second panel and constitutes a pivoting lid which in a closed position covers the first panel itself; and between the eighth panel and the first panel glue is interposed which allows to separate the eighth panel from the first panel at the opening of the rigid box.