The invention discloses a bedside cupboard. Telescopic rods are arranged under a cupboard body and arranged in telescopic sleeves in a telescoping mode. The telescopic sleeves are provided with locking devices for locking the telescopic rods. A sealing plate and a partition plate are sequentially arranged in the cupboard body from top to bottom. Space above the sealing plate in the cupboard body forms an air purifying chamber. Space below the sealing plate in the cupboard body forms a storage chamber. The storage chamber is separated by the partition plate from the middle. The bedside cupboard is simple in structure, low in price, and convenient and reliable to use and adjust, two pressing rods are used for supporting and pressing, the problem that because bolts are adopted for single screwing before, reliability is low is solved, and reliability of the bedside cupboard is improved; meanwhile, the air purifying chamber is integrated, the air purifying function can be achieved, a special air purifying device can be omitted, indoor space can be saved, and the bedside cupboard meets the requirement of people for modern and intelligent furniture.