The picture isn't of sufficient quality to say for sure, we would need a better closeup of the cabinets and antenna elements to say with any kind of confidence. Also without knowing the country and region where it is situated, it would be hard to compare to what existing operators use for what in said region.
Based on the image alone however I would say it is unlikely to be a cell phone tower, especially an LTE one.
The antenna elements appear to be omni-directional pole antenna, both from the shape and the mounting structure, which are practically never used in modern cell-phone installations.
If the antenna were in fact very slim sectorized antenna, that would indicate a high frequency (1.8Ghz+) system. Given the height of the tower (>=25 metres), a mast head amplifier (MHAs) or remote radio head (RRHs) would normally be used for high frequency cell sites as you would lose a third to a half of the signal in the cabling. Again this could be due to distance the photo was taken at, but there are no visible MHAs or RRUs in the image.
The microwave dish does however suggest a multi-site or cellular system.
My guess would be smart metering system, emergency services radio (e.g. TETRA), or some form of private communications such as on-site walkie talkies (e.g. PBR), fire alarm systems, etc. Could also be a very old cellular paging system.
Regardless, a close-up picture of the cabinets at the bottom would tell us a lot more.