The utility model relates to the technical field of routers, and discloses a dustproof device for a
computer network router, which comprises a placement shell and a
router body, the
router body is placed in the placement shell, four groups of support frames are fixedly mounted on the lower surface of the placement shell, every two mounting grooves are respectively distributed on two sides of each group of through grooves, and the support frames are fixedly mounted on the lower surface of the placement shell. And a containing groove is formed in each through groove, a
dislocation groove is formed in the outer surface of the containing shell, a dustproof mechanism is installed in each set of installation grooves, limiting mechanisms are installed on the outer surface of the containing shell, the number of the limiting mechanisms is fixed to be three, and the three sets of limiting mechanisms are installed below the dustproof mechanisms correspondingly. Through
cooperative work of the placing shell, the dustproof mechanism and the limiting mechanism, dust is prevented from entering the connecting port of the router body, so that the condition that the dust enters the connecting port of the router body to affect the contact quality between the interfaces is avoided.