This vehicular air cleaner device (60) is provided with a connecting tube (110) which extends from an air cleaner (80) to an air intake passage of an internal combustion engine. The connecting tube (110) is provided with a connecting-tube flange part (111) which extends in the radial direction. An element (70) is provided with: an element base part (72) having a filter (71) fitted thereto; and an element flange part (75) which extends in the radial direction from the element base part (72). A case main body (81) is provided with: a cylindrical part (85) which is formed so as to surround the connecting tube (110), and which has a connecting opening (86) formed therein; and an element support part (84) which engages with the element flange part (75). The connecting-tube flange part (111) is in contact with the element flange part (75) at one side surface (111a) thereof, and is in contact with the inner end (87) of the cylindrical part (85) at another side surface (111b) thereof.