The invention discloses a heat recovery type indoor TVOC purification device which comprises a main device, elastic hoses and a window with holes. The main device is connected with the window with the holes through the elastic hoses and has two working modes. In the baking mode, TVOC in indoor furniture is mainly excited out, then the TVOC is discharged to the exterior from the interior in the ventilation mode, and meanwhile, in the air exhaust process, the TVOC is converted into harmless matter to be discharged to the exterior after passing through the window with the holes. The heat recovery type indoor TVOC purification device is simple in structure, low in production cost and convenient to mount, can be immediately used after being mounted and can be immediately taken away after being dismounted, no extra air opening is needed, meanwhile, electric energy can be saved in the using process of the heat recovery type indoor TVOC purification device, and in addition, the heat recovery type indoor TVOC purification device is good in removing effect of the indoor TVOC, exhaust is subjected to purification treatment, and the problem that cross contamination is prone to occurring in a place with high building density is improved.